I've been lucky enough to get hold of a pre-production Flyingwings Venturi FPV Evo! This is the next generation of Venturi FPV which I'm told will be available in January. The kit looks pretty comprehensive:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0657-e1417802104725.jpg)
The main difference from the existing Venturi FPV is the centre section, this generation has a plywood centre section with options for GoPro and Mobius for on-board footage alongside a regular board cam for FPV. In this case I've got a GoPro version. The kits will need the centre section assembling whereas the one I got hold of is already assembled. It looks pretty easy to assemble though.
Rob says that the key driver around the redesign of the central section is having the ability to move components around easily to allow the wing to be balanced up without adding extra weight:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0651-e1417802559911.jpg)
There's space for a couple of 4S batteries, anything up to 2x4000Mah I'd say and the aluminium motor mount can be moved back and forward a bit to fine tune motor placement, the mount can be placed any way round to facilitate inboard or outboard motor configurations. There's also plenty of room for an AP and associated gubbins, I'll be fitting this one out with an MFD AP with all the trimmings so we'll see how that space takes it all. On the existing Venturi FPV it was pretty difficult to get the wings attached without skewing them so this model has little fillets which accept the wing halves to keep the wing halves symmetrical, and neatens up the wing joint:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0656-e1417802857491.jpg)
All in all, I'm pretty excited about this build, even mocked up it looks impressive:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0666-e1417804609206.jpg)
The wingspan is 1340mm and the plywood seems fairly light, with a single spar and a lighter foam density I'm expecting it to weigh a lot less than a Z3, a lot of the strength should come from the laminate and given the knocks my Ninja's suffered without any real damage it should stand up to a fair bit of abuse too.
I'll report in as the build progresses so watch this space...
http://flyingwings.co.uk/fpv-uav/fpv-wings/venturi-evo-range/venturi-fpv-wing.html (http://flyingwings.co.uk/fpv-uav/fpv-wings/venturi-evo-range/venturi-fpv-wing.html)
Neil.
That looks good - you lucky bugger, I guess Rob needed one crash tested then :P
He caught me looking through the dustbin for old Falcon bits and took pity on me.
Plus, Brucey wasn't available. ;D
Quote from: iPeel on December 05, 2014, 07:37:47 PM
[...]
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0657-e1417802104725.jpg)
Having a large centre section is an excellent idea but somewhat spoiled by that bulkhead around 2/3 way back. I presume it add strength but Could that not have a bigger hole in it? Or does it support a spar, though only hole I can see is at the back?
regards
Andy
regards
Andy
Quote from: iPeel on December 05, 2014, 09:17:46 PM
He caught me looking through the dustbin for old Falcon bits and took pity on me.
Plus, Brucey wasn't available. ;D
Blimey Brucey oughtta get one .. He's Rob's No1 Salesman ;)
regards
Andy
Rob said there's one lined up for him, but given he's the #1 team flyer he's asked for some bespoke customisations that will take a little longer; something about not wanting to use a GoPro without the case that supports 100G impacts...
Quote from: skyscraper on December 05, 2014, 09:25:51 PM
Having a large centre section is an excellent idea but somewhat spoiled by that bulkhead around 2/3 way back. I presume it add strength but Could that not have a bigger hole in it? Or does it support a spar, though only hole I can see is at the back?
You mean between the battery and equipment bays? It's needed for strength I think but does have large holes that you can pass two XT60's through.
Quote from: iPeel on December 05, 2014, 09:33:17 PM
Rob said there's one lined up for him, but given he's the #1 team flyer he's asked for some bespoke customisations that will take a little longer; something about not wanting to use a GoPro without the case that supports 100G impacts...
I have heard talk about putting a steel scaff bar down the leading edge of Bruceys next plane.. Do you think that will be enough? :laugh:
regards
Andy
Quote from: skyscraper on December 05, 2014, 09:44:20 PM
I have heard talk about putting a steel scaff bar down the leading edge of Bruceys next plane.. Do you think that will be enough? :laugh:
I hear he's been training with Leicester City, so he won't be going near any goals!
Quote from: iPeel on December 05, 2014, 09:51:54 PM
Quote from: skyscraper on December 05, 2014, 09:44:20 PM
I have heard talk about putting a steel scaff bar down the leading edge of Bruceys next plane.. Do you think that will be enough? :laugh:
I hear he's been training with Leicester City, so he won't be going near any goals!
we live in hope that Brucey will be as blessed :laugh:
regards
Andy
This looks very good, like a scaled up version of my monkeyblunt teksumo http://www.fpvhub.com/index.php/topic,20604.msg165087.html#msg165087 (http://www.fpvhub.com/index.php/topic,20604.msg165087.html#msg165087)
I really really like it.
I'm very jealous. I loved my Vent. When is the Evo going to be available?
Krikey
In January apparently Neil.
Quote from: iPeel on December 05, 2014, 09:35:33 PM
Quote from: skyscraper on December 05, 2014, 09:25:51 PM
Having a large centre section is an excellent idea but somewhat spoiled by that bulkhead around 2/3 way back. I presume it add strength but Could that not have a bigger hole in it? Or does it support a spar, though only hole I can see is at the back?
You mean between the battery and equipment bays? It's needed for strength I think but does have large holes that you can pass two XT60's through.
Yeah,
I had a very big equipment compartment in my old wing Tensor V2. Because it was so big I could get loads of different bettery sizes in, but to do that you need to be able to move them fore and aft quite a bit to balance. Looking at that bulkhead, there already seems to be support from a ply floor behind so might be possible to reduce it to a couple of fillets each side at the top with a carbon rod glued to the fillets at the top, thus opening up the whole area. The huge compartment inTensor V2 was great becuase it was unrestricted. You could move stuff around where you wanted
I noticed on the Z3, though its quite roomy, you have various bulkheads across and that limits how you can lay stuff out and I'm sure people have struggled a bit to balance if I recall..
regards
Andy
Looking forward to seeing how this flies! Any rough estimates of the price point?
Hey! I hope that's not my kit you've got! ;D
Rob emailed me two days before going away to say it was ready, but I'm away till Xmas now so that sucks.
Thanks for all the kind comments about goal posts and reinforcements etc, I'm touched!
Well I'm really looking forward to getting my hands on one, not having to cut chunks of foam out to fit the batteries and adjustable motor mount well make a great wing even better.
Well, day one done and I'm some way in on the build. First I got to work on the paintwork. I sprayed the central section black, masking off any points inside I wanted to stick things to well:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0674-e1417890472920.jpg)
Next up, I sprayed the elevons and masked off all but the section on the wings I wanted spraying Ford "Asbo" Orange:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0675-e1417890537797.jpg)
That's the top done:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0676-e1417890630334.jpg)
Same thing with the bottom, this time in black:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0678-e1417890699248.jpg)
Next I had a test fit of the motor mount, I want to mount the ESC outboard for better cooling, it'll be tight and will need some tight wiring but it's possible:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0679-e1417890774447.jpg)
The motor I'm opting for is an E-Flite Power 25 1250Kv with an 80A JP Energ Pro ESC.
The elevons are looking nice after laminating them with 75 micron film:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0681-e1417891001628.jpg)
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0682-e1417891054725.jpg)
Next I got to work on mounting the pitot tube for the MFD. I neatly cut away a section of foam:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0683-e1417891152214.jpg)
Then mounted the pitot tube and the sensor inside the cavity and replaced the foam to fit snugly:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0685-e1417891245895.jpg)
Next up was to cut out the sections for the receiving electronics on the left wing. First I marked the outline of the GPS and DTF-UHF OpenLRS RX. Each box is marked out with its separate depth:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0687-e1417891463281.jpg)
Then, for each component I measure the depth with the router attachment on my Dremel and start carving out each section:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0688-e1417891598344.jpg)
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0689-e1417891658427.jpg)
That then leaves a nice flat cavity for each component and is much better than carving out crosses with a scalpel and trying to pick them out with pliers:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0690-e1417891749846.jpg)
Here's the antenna I knocked up, it's a dipole with a flexible groundplane. The flex comes from some surgical tubing attached to a 3D printed part that encases the SMA connector:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0691-e1417891812504.jpg)
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0692-e1417891938502.jpg)
Time for a break I think!
That looks great - I like the idea of using a dremel to make a cut for equipment to go in. The scalpel blade cutting little blocks works ok for me, but it's never that neat and even.
loving these pictures.
I held off from getting into wings like the Zephyr for a long time, I even hovered over the buy now button on the Venturi FPV page for a while... but seeing this is making me get interested in wings again.
In fact, I've got a power plant in the garage which would be ideal for one of these.
Its my 1250KV 3542 SK3 Aerodrive motor and 60A ESC I had in my Go Discover.
Next up, plan out the location of the control horns:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0693-e1417892729956.jpg)
I've gone for 110mm in from the inside edge of the elevon and 5mm from the leading edge.
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0695-e1417892877846.jpg)
Next, assemble the horn and mount it:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0697-e1417892948162.jpg)
The control linkage needs assembling from a threaded rod and a joint which needs soldering onto it. I find the easiest way is first to file the end of the rod for a good mate with the solder then get everything really hot using a gas ring on the hob with a little solder in the joint, then push the rod into the joint and leave to cool.
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0705-e1417893017249.jpg)
Then I can plan out the location of the servo:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0698-e1417893275872.jpg)
The servo bays marked out on each wing halve:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0700-e1417893365592.jpg)
I then cut out the bays using the Dremel in the same way as before.
Next I cut a hidden channel from the inside of the wing half through to the servo bay and fed some servo cable through taped to a carbon rod:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0702-e1417893453379.jpg)
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0703-e1417893546706.jpg)
The servos are then soldered to the extension:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0704-e1417893588300.jpg)
That's the servos glued in place, probably time to call it a day for today:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0707-e1417894235177.jpg)
Providing I can ignore the wife for another day I should be able to get all the build done tomorrow!
Quote from: Brucey on December 06, 2014, 05:27:16 PM
Hey! I hope that's not my kit you've got! ;D
Rob emailed me two days before going away to say it was ready, but I'm away till Xmas now so that sucks.
Thanks for all the kind comments about goal posts and reinforcements etc, I'm touched!
Well I'm really looking forward to getting my hands on one, not having to cut chunks of foam out to fit the batteries and adjustable motor mount well make a great wing even better.
I'm just ironing out the creases for you Brucey! Making sure everything good before the big man gets his hands on it. I need you with a fast wing again, it's boring flying on my own!
Hopefully by EOP tomorrow I'll have it in a state where we know how it balances up.
That looks amazing, such a neat and tidy build! Looking forward to seeing the finished article! How did you do the hidden servo cable channel?
Quote from: iwan_canobi on December 06, 2014, 10:06:01 PM
That looks amazing, such a neat and tidy build! Looking forward to seeing the finished article! How did you do the hidden servo cable channel?
Cheers.
I cut the hole using a length of carbon rod which I sharpened the end of, it just needs a good eye to line it up then patience gently pushing the rod through the foam with a little twist. Once the rod is though into the servo bay I pull the rod back and use it to push the servo cable through.
Neil.
Great build log so far,Neil
Looking good mate. Looking forward to flying one again
Looking very nice.
Very much like the router attachment for the dremel.
When is the maiden :)
I'm liking the look of this.. especially the large center bay...
Brucey
What is the Dremel bit you use to rout out the pockets technically named ? I want to buy one - can it be bought on its' own or is it part of an accessory kit ???
Thanks
It looks like the grout removal tool.......
As above but the cowling part of it, whats that called :)
http://lmgtfy.com/?q=dremel+grout+remover+tool# (http://lmgtfy.com/?q=dremel+grout+remover+tool#)
Quote from: wgt40w on December 07, 2014, 07:12:07 PM
What is the Dremel bit you use to rout out the pockets technically named ? I want to buy one - can it be bought on its' own or is it part of an accessory kit ???
It's the tile cutting bit but TBH the TCT router bit works best, I just couldn't find it!
You can buy the assembly here:
http://www.amazon.co.uk/Dremel-Ceramic-Tile-Cutting-Kit/dp/B0002SMN9Q/ref=sr_1_1?ie=UTF8&qid=1417976687&sr=8-1&keywords=dremel+tile+attachment (http://www.amazon.co.uk/Dremel-Ceramic-Tile-Cutting-Kit/dp/B0002SMN9Q/ref=sr_1_1?ie=UTF8&qid=1417976687&sr=8-1&keywords=dremel+tile+attachment)
Neil.
Quote from: Gundummy on December 07, 2014, 07:22:22 PM
http://lmgtfy.com/?q=dremel+grout+remover+tool# (http://lmgtfy.com/?q=dremel+grout+remover+tool#)
That only works if someone knew it was called a grout remover tool smart arse :) :)
LMFAO :rofl:
OK, got quite a bit done today, almost ready for the maiden!
First though, the boring bits. I started to wire up everything on the wings so that I could laminate the wing with the wiring in place.
I buy lengths of ribbon cable on eBay then just cut the length and number of cores I need. I'm going to use a single run of ribbon cable for the PPM output of the RX, the RSSI and the GPS:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0708-e1417980734710.jpg)
I crimped everything up and kept relevant colours for the ground pins so I knew which way round they are meant to go:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0709-e1417980882730.jpg)
After connecting up the RX and the GPS I cut a slot to the correct depth to take the ribbon cable and teased the cable in with pliers:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0711-e1417980985967.jpg)
Next up, I cut the VTX bay using the seemingly popular Dremel method and cut a channel for the cable. I use individually screened headphone cable, the "right" channel for power, the "left" channel for video to keep noise out of the video feed:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0713-e1417981080186.jpg)
Now I'l ready to laminate the wings, but even though it's a ballache getting everything connected to an MFD Autopilot I thought it worth doing to make sure everything worked before laminating:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0715-e1417981257979.jpg)
Now, before I started laminating I considered the chicken and egg situation. I wanted to laminate the wings before glueing them to the centre section, but the single spar running through both wings needs glue applying into the slot before the wing halves go together:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0716-e1417981436284.jpg)
What I decided I'd do was to laminate starting from the slot towards the back of the wing, then when I laminated the rest I would leave a flap of laminate unheated which I'd then finish off once the wing halves were together:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0717-e1417981564534.jpg)
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0721-e1417981670683.jpg)
Once the wings were laminated I tacked in place the spar to the centre section with hot glue so I knew it was even on both sides:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0725-e1417981876432.jpg)
Then I glued the little fillets which meet up with the front of each wing. I left this until now so that they would fit flush against the front of the wing:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0726-e1417981957916.jpg)
While I waited for the POR to go off, time to admire the work so far:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0728-e1417982072906.jpg)
Once those were in place and dried I applied POR to the wing and centre section and left it 10 minutes:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0730-e1417982178353.jpg)
Then I slid the wing over the dry spar until it was almost at the joint of the centre section and squirted glue into the spar and rotated the wing several times to get glues all around the spar:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0731-e1417982258340.jpg)
And that's the wing glued together!:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0732-e1417982373263.jpg)
Very noob question from me. I notice one of the issues is that after laminating the balance can change and so your carefully laid out components might suddenly end up being nose/tail heavy and so weight will need to be added.
Is there a reason not to laminate the wings before you make cuts for an easy way to balance with all your stuff on there ?
Next up I cut a channel for the board cam feed through the bulkhead so I could route the cable underneath the battery tray, this will be nicely hidden by the foam underneath the centre section:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0733-e1417983037829.jpg)
This will probably be fixed in the release version, but I found that the slots for the battery straps didn't have as much material as I'd like between them and the cutouts in the plywood, so I reinforced them with coffee stirrers:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0735-e1417983185994.jpg)
Next, time to attach the elevons. I used 3M Blenderm using the Ritewing method:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0736-e1417983240978.jpg)
The I laminated the hatch, leaving a strip of laminate that I'll use to attach it to the front of the centre section:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0742-e1417983393238.jpg)
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0743-e1417983439277.jpg)
I double laminated a little strip and attached it to the back of the hatch to make a little tab I could use ti lift the hatch then I used a couple of little battery straps cut to size and glued one to the rear hatch support:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0745-e1417983595274.jpg)
And one to the underside of the rear part of the hatch:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0746-e1417983674496.jpg)
Now I have a velcro sealed hatch.
Looking good, which is more than I can say for my man cave!
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0748.jpg)
.. and plenty of room it turns out in the bay for the AP, current sensor etc:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0750-e1417984794330.jpg)
Not much left to do now, a couple of things I have to follow up with Rob on and I'm waiting for a heatsink for my ESC, then it should be ready for maiden.
CG-wise It's balancing up OK, just a bit nose heavy at the moment based on the figures I've got. I need to validate the CG though by prancing around the field like an idiot giving the wing little lobs to see how it acts.
Neil.
Like an OCD wet dream! :P
Looks great, liking the ribbon cable and the shielded cable for the video signal, good idea.
Quote from: CurryKitten on December 07, 2014, 09:10:15 PM
Very noob question from me. I notice one of the issues is that after laminating the balance can change and so your carefully laid out components might suddenly end up being nose/tail heavy and so weight will need to be added.
Is there a reason not to laminate the wings before you make cuts for an easy way to balance with all your stuff on there ?
The only concern I've had before was with my Ninturi because there wasn't room to move anything around in a bay. What I did there was laminate before I cut the battery bays, then use the battery position to balance everything up.
Quote from: iPeel on December 07, 2014, 07:25:22 PM
Quote from: wgt40w on December 07, 2014, 07:12:07 PM
What is the Dremel bit you use to rout out the pockets technically named ? I want to buy one - can it be bought on its' own or is it part of an accessory kit ???
It's the tile cutting bit but TBH the TCT router bit works best, I just couldn't find it!
Neil.
The only Dremel TCT router bits I have found are for the Dremel Trio - this accepts bigger shanked bits than any of the normal Dremels.
What type of Dremel do you use ?
Looking good buddy!
Quote from: wgt40w on December 07, 2014, 11:50:10 PM
The only Dremel TCT router bits I have found are for the Dremel Trio - this accepts bigger shanked bits than any of the normal Dremels.
What type of Dremel do you use ?
I've got a Dremel pro but all the bits I have are for the standard consumer Dremel.
This should fit a standard Dremel:
http://www.amazon.co.uk/s/ref=nb_sb_noss_1?url=search-alias%3Daps&field-keywords=dremel+9901 (http://www.amazon.co.uk/s/ref=nb_sb_noss_1?url=search-alias%3Daps&field-keywords=dremel+9901)
Thanks to Neil for the build thread.
Bulk heads : I could put some extra slots in to allow movement of the middle bulkhead, allow more movement.
That bulkhead maybe overkill any way.
Price point: Will be £69.95
Camera options GP2/GP3/Mobius/SJ4000
Thanks for your patience
Cheers rob w/stinky cold :-(
Flyingwings
I think the bulkhead or something is needed to keep the hatch supported Rob, and if it's moveable the cutouts in the foam hatch won't match up. IMO it's in the right place but I guess it could be made half height and run along the top of the centre section.
So, last night I got her finished and ready for a maiden!
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0758-e1418122643145.jpg)
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0763-e1418122707918.jpg)
As a recap, here's the specs:
2x 3300Mah 4S Nanotechs
E-Flite Power 25 1250Kv motor
JP EnErg Pro 80A ESC
Graupner CAM 9x6 prop
MFD AP with 100A current sensor, GPS & Airspeed sensor
Effio V board cam << Edit: So I don't need a voltage regulator I've fed this from the 4S through two diodes in series.
Hitec HS645MG servos
DTF-UHF 6 channel OpenLRS with flexible dipole
ImmersionRC VTX with LHCP Skew from Gav
AUW for that lot came to exactly 2000g, that's not bad for a 1340mm wingspan and just under half a kilo lighter than my Z3!
Next, the maiden!
Neil
Yeehah! Looking good :P
regards
Andy
Well, we've maidened it and it's back in one piece!
It was f*!king cold! The weather forecast suggested if I didn't maiden it this morning then it'd be after Christmas before I did so I headed out to the Bury Field and got everything set up.
The launch was dead easy, full throttle and a good overhead lob it went up like a dream. Given my complete trust for MFD I even stuck it in Launch mode.
The CG on mine was bang on 200mm from the wing edge and it felt a little tail heavy, I had the batteries way back in the bay against the bulkhead and no HD camera in it so adding some weight to the front is going to be easy. I reckon' 185-190 back from the leading edge of the wing will be a good balance.
It was a little windy, but flew great and I'm really happy with the wing, definitely looking forward to getting out with it again.
I forgot the SD card for my DVR like an idiot, but Rob had a 1GB card in his camera so I nicked that. Unfortunately it ran out just after 7 minutes of recording, but here you go:
http://youtu.be/S-SYsMs73ns (http://youtu.be/S-SYsMs73ns)
I missed the landing but there were no issues, a nice gentle approach and landing, well gentle for me anyway.
I need to get a filter on the feed going to the AP & video but that's easy enough to sort. Generally though I'm well chuffed!
Neil.
Quote from: skyscraper on December 09, 2014, 12:47:15 PM
Yeehah! Looking good :P
Cheers Andy, I'm gonna' have to leave her for a week now to go snow boarding, unless I leave the snowboard at home and take the wing instead. ;D
nice one Neil. flys lovely.
Krikey
Flys great, if a little twitchy at the mount, but that's just a tuning thing.
I like the look of it.. now wondering about a Falcon version.. Maybe...
http://www.fpvhub.com/index.php/topic,22361.msg177457.html#msg177457 (http://www.fpvhub.com/index.php/topic,22361.msg177457.html#msg177457)
but with a smaller centre bay more in proportion with the Venturi one!
Just a thought!
regards
Andy
Quote from: CurryKitten on December 09, 2014, 06:56:59 PM
Flys great, if a little twitchy at the mount, but that's just a tuning thing.
Yeah, I've turned down the rates 10% and gone a peg down on the servo horns. That and we think it was a touch tail heavy.
Once I've flown it again and got it handling well I'll post my CG and throws.
I've also got an SJ4000 coming this week and I'll see how that performs onboard.
Quote from: skyscraper on December 09, 2014, 07:03:44 PM
I like the look of it.. now wondering about a Falcon version.. Maybe...
http://www.fpvhub.com/index.php/topic,22361.msg177457.html#msg177457 (http://www.fpvhub.com/index.php/topic,22361.msg177457.html#msg177457)
but with a smaller centre bay more in proportion with the Venturi one!
Not sure Andy, IMO the Falcon's about keeping it light and nimble, personally I'd never put an AP on a Falcon and that's coming from someone who lost one!
Nice one Neil!
Quote from: Brucey on December 09, 2014, 07:11:29 PM
Nice one Neil!
I just built it mate, I think Rob needs some credit for sorting out the Venturi. I think a Vent FPV that you can even talk about being tail heavy is a surprise!
It proves the battery bay is on the sweet spot.
Neil.
I quite liked the responsiveness of large throws for roll rates on my old vent, to be able to roll it rapidly is great whilst having it docile close to centre stick. Expos I feel are needed here.
Krikey
That or I just need to man up a bit. :)
nah, just put some expo in there. not sure if there's any benefit to high pitch rates which presumably if harsh enough could stall the wing badly, or stick the plane in the deck when landing.
Krikey
Hmmmmm.... Tasty, very tasty.
It is right 😀
Quote from: iPeel on December 09, 2014, 07:10:39 PM
Quote from: skyscraper on December 09, 2014, 07:03:44 PM
I like the look of it.. now wondering about a Falcon version.. Maybe...
http://www.fpvhub.com/index.php/topic,22361.msg177457.html#msg177457 (http://www.fpvhub.com/index.php/topic,22361.msg177457.html#msg177457)
but with a smaller centre bay more in proportion with the Venturi one!
Not sure Andy, IMO the Falcon's about keeping it light and nimble, personally I'd never put an AP on a Falcon and that's coming from someone who lost one!
Well it takes all sorts. :+. I am quite keen to have a go at it though. I have got used to having my APM2 on My Falcon I must say. but Quite fancy a Falcon with a nose! And After the artwork I see on that , it's about time I at least tried to make a plane that doesnt look like sh*t :laugh:
Anyway congrats to Rob.That Venturi Looks like a really useful FPV machine!
regards
Andy
Glad you got it in the air easily, looks like it has a lot of potential!
Quote from: iPeel on December 09, 2014, 07:10:39 PM
Not sure Andy, IMO the Falcon's about keeping it light and nimble, personally I'd never put an AP on a Falcon and that's coming from someone who lost one!
I just never got on with the Falcon really, it was far too fidgety and twitchy for my liking so thats why I added the center section. I think I had too big expectations for such a small wing though, so maybe I'm being a bit harsh on it.
I agree with skyscraper that my center section probably is a bit too wide, but it makes a massive difference to the stability of the plane. The more I fly it the more I am enjoying it at the moment!
Quote from: skyscraper on December 10, 2014, 09:39:37 AM
Well it takes all sorts. :+. I am quite keen to have a go at it though. I have got used to having my APM2 on My Falcon I must say. but Quite fancy a Falcon with a nose! And After the artwork I see on that , it's about time I at least tried to make a plane that doesnt look like sh*t :laugh:
Now that I've done a first version I'm tempted to do it again properly like you say. This was mainly a bit of a bodge as a trial but now that I know it works a neater and intentionally built one is in order I think! I see the Falcon FPV has went up in price since I bought it though, I'm sure I only paid £35.
Quote from: iwan_canobi on December 10, 2014, 10:15:18 AM
Glad you got it in the air easily, looks like it has a lot of potential!
Quote from: iPeel on December 09, 2014, 07:10:39 PM
Not sure Andy, IMO the Falcon's about keeping it light and nimble, personally I'd never put an AP on a Falcon and that's coming from someone who lost one!
I just never got on with the Falcon really, it was far too fidgety and twitchy for my liking so thats why I added the center section. I think I had too big expectations for such a small wing though, so maybe I'm being a bit harsh on it.
I agree with skyscraper that my center section probably is a bit too wide, but it makes a massive difference to the stability of the plane. The more I fly it the more I am enjoying it at the moment!
Quote from: skyscraper on December 10, 2014, 09:39:37 AM
Well it takes all sorts. :+. I am quite keen to have a go at it though. I have got used to having my APM2 on My Falcon I must say. but Quite fancy a Falcon with a nose! And After the artwork I see on that , it's about time I at least tried to make a plane that doesnt look like sh*t :laugh:
Now that I've done a first version I'm tempted to do it again properly like you say. This was mainly a bit of a bodge as a trial but now that I know it works a neater and intentionally built one is in order I think! I see the Falcon FPV has went up in price since I bought it though, I'm sure I only paid £35.
Hi mate.
Think the Sport is £35. FPV is more and has a little nose I see !
I didnt mean your planes look like shit. The Zephalcon is pretty cool.. I meant mine tend to :laugh:
regards
Andy
Ha ha, I didn't think thats what you meant, even if you did I would tend to agree anyway! Function over form! :P
Yeah I saw that, mine was definitely the FPV version as it has the plywood camera mount in the nose, but maybe I just remember how much I told the wife it was! :P
Still great value either way for what they are though! Its good to see that a UK based small company can make good quality products and keep the price point so low.
That's the great thing about this stuff - you buy the kit and you build / adapt to meet your needs and style. For me the Falcon is about flying close range with mates darting between bushes and under goalposts ( sometimes into them ;) ), John at FatFlyer has put a Vector on his Falcon and I think is well happy with it.
As well as having a bigger surface area, Venturi wings have much more upper camber and therefore much better lifting capability and stability, the Falcon is quite a skinny wing. Having flown the Venturi and a Ninja which is the same surface area as the Venturi but with less camber I can definitely feel a difference in stability, especially at lower speeds. I'll definitely be refitting my Ninja over the winter to give Brucey a run for his money at Mad Dogs. ;)
Neil.
Watching your flight the first thing I notice is the yaw wobble. Having one wing already I find this very off-putting flying FPV. Would it not be a good idea to have another couple of fins either side of the centre section lot the chimera pro?
Sent from my Nexus 5 using Tapatalk
Concerning wobble, it was mainly on launch with low airspeed, it was the maiden as well
May try another wingtip design, see what happens
Rob
Or the wing fence's we spoke about rob?
Quote from: Brucey on December 10, 2014, 05:56:47 PM
Or the wing fence's we spoke about rob?
like this?
(https://dl.dropboxusercontent.com/u/8259957/FPV/Go%20Discover/IMG_1281.JPG)
Yeah, the fences are half way down the wing http://wikipedia.org/wiki/Wing_fence
My Z3 had them and still wobbled a little. I think the wing was on the edge of being tail heavy and I'm adding weight to the nose (in the form of an HD camera) then we can see what wobble still exists then.
I do think an option of some correx fences is a good idea though Rob, they could follow the contour of the wing 50% along and have tabs people cut cut into the wing and glue to secure them.
Neil.
Lets try it out, mind you maybe after the snow storm
I will cut some out and we can lash em on.
Rob
We'll try out my £75 nose weight first.
I'll still have a pair
Looking forward to the release of the Venturi! Was about to press the Go button on a Zephyr II, but will hold off for this :)
Prefer to support British products :)
Yes can't wait to get hold of a new Vent myself.
Any more news on testing, keen to know if you managed to reduce Yaw wobble further? Trying to decide on a new FPV plane and this could fit the bill if it doesn't wobble :-)
I've had a couple more flights with it after fitting an SJ4000 up front and the additional nose weight definitely helped, there's also about 40MM of movement in the batteries to help with balancing. It's been very windy here though, so not much in terms of decent flights. I'm heading out tomorrow though and if I get more footage I'll post it up.
Yeah not been the best conditions recently for flying anything. Looking ok tomorrow here and hopefully Monday I'll be out as well.
Sent from my Nexus 5 using Tapatalk
Well I got out today and was joined by Brucey and ChrisVonBron. I got another flight in on the Venturi Evo and it's much better now it's properly balanced up.
I got a video of it and this time have removed the audio so you don't have to put up with my waffle:
http://youtu.be/XI2Q3bSwfoA (http://youtu.be/XI2Q3bSwfoA)
Brucey also took the controls, after I launched it for him he did his usual and headed straight for about two feet off the deck, counting blades of grass:
http://youtu.be/lwpKV58EBSc (http://youtu.be/lwpKV58EBSc)
It looks like we've got some much calmer weather round here over the next few days, I'm looking forward to getting out some more!
Neil.
Yeah she flew great and inspired confidence straight away. I was happy to get down low (once I knew there were no goal post around!)
I can also confirm that this wing is robust as it has dealt with Neil's 'landings' perfectly!
I am now jealous and in need of a Vent more than before!
Quote from: dp106 on December 27, 2014, 03:30:04 PM
Any more news on testing, keen to know if you managed to reduce Yaw wobble further? Trying to decide on a new FPV plane and this could fit the bill if it doesn't wobble :-)
I reckon Any wing with similar configuration ( e.g Smallish fins not far from the c.g along the " fore and aft roll axis") will do the "swagger" ( courtesy of G.Collins) at low speeds. You might make some gains by distributing the fins half above and half below the wing, but the only way to make real improvements is by increasing the moment (http://en.wikipedia.org/wiki/Moment_%28physics%29). You can do that by increasing area of the fins, using a more effective aerofoil plan ( e.g tall and thinnish but watch the Reynolds number) and or the distance from the C.G.
A Wing with more sweep will do better as it puts the fins further back, but its less efficient overall..
On a wing the Fins interact with the wing as well ( in yaw the forward wing will tend to lift, not what you want), so getting the fins away from the wing would also help
Actually its easier on the new Venturi, because you can get the weight further forward so you can but the fins further back from the wing ( e.g on booms) without having to add yet more weight to balance...
The other option is to use a gyro and active spoilerons, like they do on some military stealth uavs...
regards
Andy
Really interesting skyscraper thanks
Just a quick note to say that the new Venturi Evo is now available at an introductory price of £64.95, if you say you are on FPVhub then I will drop in 4 metres of laminate gratis.
It will ship with new carbon reinforced wingtips
Cheers Rob
Bargain!
Very tempted. Blurb on the website warns its an advanced build.. I've not built one before so will this be too much?
Sent from my Nexus 5 using Tapatalk
Have you flown a flying wing before? Might be better of starting with a FlyingWings Falcon. Easier to launch, fly and build. But enables you to gain the skills to build this.
Yeah, I've got an fx61 and a teksumo.
Sent from my Nexus 5 using Tapatalk
Cool, well in that case it's just making sure it balances correct (which you would of needed to do before) and laminating, which isn't that hard, lots of YouTube videos around on the subject.
Also there is a wealth of knowledge on here if you do get stuck!
Where about you located? If your local happy help out.
I'm in Yate, just north of Bristol.
Sent from my Nexus 5 using Tapatalk
Hmmm, bit far away, but can help on here!
Yeah no worries, thanks for the offer :-)
Sent from my Nexus 5 using Tapatalk
Quote from: foamster on January 04, 2015, 04:48:27 PM
Just a quick note to say that the new Venturi Evo is now available at an introductory price of £64.95, if you say you are on FPVhub then I will drop in 4 metres of laminate gratis.
It will ship with new carbon reinforced wingtips
Cheers Rob
Hello Rob, I just ordered a Venturi FPV wing, but only just saw this thread on here, any chance of getting the laminate thrown in. I only ordered about an hour ago, it's Ben, from Brighton. Cheers
Doh ... me to ;D
PM on the way!!!
Quote from: dp106 on January 04, 2015, 10:11:54 PM
Yeah no worries, thanks for the offer :-)
Sent from my Nexus 5 using Tapatalk
I'm in Bristol... buy one and then when/if I do then you can help me out ;)
Quote from: Cypher on January 06, 2015, 07:16:02 PM
Will this take a 10inch prop?
I like the cut of your jib, my man!
Yes, a 10" prop would fit. You might want to cut an extra sweep into the elevons near the motor end to avoid any wash from the prop but it'll certainly fit with room to spare.
Here's an image of a 10" prop held up against the venturi:
(http://www.peely.com/wp-content/uploads/2015/01/IMG_0843.jpg)
Neil.
Quote from: Cypher on January 06, 2015, 07:59:29 PM
Nice! Think I have just been tempted!
Cool, what kind of power setup are you going for? Sounds like you're planning on building a beast.
I've just collected mine:D
I'm still trying to make my mind up. It's between this and a Twinstar 2 at the moment :-)
Sent from my Nexus 5 using Tapatalk
Hmmm, two very different planes....
are these for general sale now?
Yeah, just not sure what I want haha I'd have the wing but one thing that puts me off is they're not exactly quiet. Where I fly we've had couple of people moan so thinking the Twinstar would draw less attention. I am drawn to the more acrobatic nature of a wing, may have to try and persuade the missus I need both 😀
Sent from my Nexus 5 using Tapatalk
OMG just had to exercise extreme self control and NOT push the button on one of these... I'm selling bit's n bobs here and there, with the aim of building a new skyhunter... but then things like this pop up and I get side tracked lol
must
be
strong
Quote from: Brucey on January 10, 2015, 04:19:58 PM
I've just collected mine:D
That's great news, are you going for the Martini racing scheme again? That job looked awesome.
Fingers crossed it lands in my lap in the morning!!
Quote from: iPeel on January 11, 2015, 09:33:48 AM
Quote from: Brucey on January 10, 2015, 04:19:58 PM
I've just collected mine:D
That's great news, are you going for the Martini racing scheme again? That job looked awesome.
Yeah but without the pearlesant covering. I'm mounting everything underneath the wing to keep the top of the wing as clean as possible, only servos going up there. Just hope I don't land on a rock!
Quote from: Brucey on January 11, 2015, 12:34:52 PM
Quote from: iPeel on January 11, 2015, 09:33:48 AM
Quote from: Brucey on January 10, 2015, 04:19:58 PM
I've just collected mine:D
That's great news, are you going for the Martini racing scheme again? That job looked awesome.
Yeah but without the pearlesant covering. I'm mounting everything underneath the wing to keep the top of the wing as clean as possible, only servos going up there. Just hope I don't land on a rock!
Hiya Brucey. Just my 2p about that. I had the battery bay underneath on my first wing Tensor V1. I wouldnt do it again. Its a real pain to work on. and change batteries etc with plane upside down. So much easier having everything on top so you can work on the plane right way up without the fins getting in the way..
Anyway feel better now that's off my chest :laugh: Looking forward to seeing it Roar !
regards
Andy
The batteries will still be on top in the new centre bay so day to day I shouldn't have to worry about the underneath.
Thanks for the heads up though.
Kit arrived today..... wow
Nice well thought out wing that will come off better if it hit a tree!!
10/10 so far :sparta:
Cool, keep us posted on your progress
Mine has also just arrived, this is going to be my first wing build so please post lots of photos and tips up here. Any advice will be much appreciated.
Feel free to ask questions if your not sure about something
Start a thread too and add plenty of pics and ramblings, people are always willing to constructively critique!
I will deffo start a thread when I start this build, but I keep on making drunk purchases at the weekend and I have a small shed load of projects I need to finish before cracking on with this one ! So will watch and learn from other people then hit this in a couple of weeks time.
One thing tho, Servo recommendations
Look can you stop posting to this thread cause if you don't I'm going to end up ordering one as well! :-)
Sent from my Nexus 5 using Tapatalk
Quote from: benitoculito on January 12, 2015, 10:17:06 PM
One thing tho, Servo recommendations
I used Hitec HS645MG.
I used hitec 5485hb after a recommendation from dogzilla
oh choices choices!!!
(http://i21.photobucket.com/albums/b287/ukbeast/heli/20150113_104644_zpswgwytmvw.jpg)
(http://i21.photobucket.com/albums/b287/ukbeast/heli/20150113_110041_zpsm9bt5qmq.jpg)
just need to think of what colour scheme to go with......
Quote from: Gundummy on January 13, 2015, 12:45:56 PM
just need to think of what colour scheme to go with......
I fancy on my next build doing the wings in this (http://www.ebay.co.uk/itm/Chrome-Silver-Vehicle-Wrap-1520-x-500mm-Roll-Bubble-Free-Vinyl-Fast-Delivery-/130766743527?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item1e724e27e7) and the centre section lid and base in this (http://www.ebay.co.uk/itm/Gloss-Black-Vinyl-1520-x-1000mm-Air-Free-Vehicle-Wrap-for-your-Car-Motorcycle-/140808384333?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item20c8d56f4d).
The problem is I reckon' you have to get a really good smooth finish or it'll look like crap.
Quote from: iPeel on January 13, 2015, 01:00:55 PM
Quote from: Gundummy on January 13, 2015, 12:45:56 PM
just need to think of what colour scheme to go with......
I fancy on my next build doing the wings in this (http://www.ebay.co.uk/itm/Chrome-Silver-Vehicle-Wrap-1520-x-500mm-Roll-Bubble-Free-Vinyl-Fast-Delivery-/130766743527?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item1e724e27e7) and the centre section lid and base in this (http://www.ebay.co.uk/itm/Gloss-Black-Vinyl-1520-x-1000mm-Air-Free-Vehicle-Wrap-for-your-Car-Motorcycle-/140808384333?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item20c8d56f4d).
The problem is I reckon' you have to get a really good smooth finish or it'll look like crap.
Hows about this for a look
http://www.easycomposites.co.uk/products/kevlar-aramid-other/aramid-satin-175g-1m.aspx (http://www.easycomposites.co.uk/products/kevlar-aramid-other/aramid-satin-175g-1m.aspx)
Lay it up with in a vacuum bag using mylars for a glass smooth and bullet proof finish...
Trouble is ....with the perfect mirror finish ... imagine stepping out into that field full of cowpats.. ? :)
Regards
Andy
I'm thinking "Comic Book" ........
Quote from: iPeel on January 13, 2015, 01:00:55 PM
Quote from: Gundummy on January 13, 2015, 12:45:56 PM
just need to think of what colour scheme to go with......
I fancy on my next build doing the wings in this (http://www.ebay.co.uk/itm/Chrome-Silver-Vehicle-Wrap-1520-x-500mm-Roll-Bubble-Free-Vinyl-Fast-Delivery-/130766743527?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item1e724e27e7) and the centre section lid and base in this (http://www.ebay.co.uk/itm/Gloss-Black-Vinyl-1520-x-1000mm-Air-Free-Vehicle-Wrap-for-your-Car-Motorcycle-/140808384333?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item20c8d56f4d).
The problem is I reckon' you have to get a really good smooth finish or it'll look like crap.
I've always fancied chrome, just wonder about the metal content of any.
Good to see another Ruby going in a Vent.
MyFlyDream AP. An absolutely brilliant bit of kit and worth every cent.
Spares arrived...... build continues... I'll just post a picture build blog on a new post when done
;D
That's it? No flight reports?! I've been holding back till I hear that it's a fantastic flyer ))
Sorry .... my workload has doubled and i've been sidetracked for a while (I am the hubs slowest builder after all and the RUBY isn't plug in and play).
My advice..... Press Buy. Superb Kit, Clippedwing (Ben) Who normally builds and cuts all his own EPP wings has been bowled over with this kit. Price is fantastic and it is transportable compared to X8's and the like.
Backup and support awesome and i'd be confident that in a crash ... the tree would suffer more!
Ipeel has got his flying, and I've flown it. It's been great!
So do I get one of these or a TBS Caip with their new 3S power setup?
I have a cappy.... get this!
:D
Quote from: psyvision on February 04, 2015, 09:30:58 PM
So do I get one of these or a TBS Caip with their new 3S power setup?
I have seen iPeels fly on two occasions now. It is very good and will certainly be my next purchase once I get to grips with the Falcon.
You posh bugger Cypher! There's going to be plenty of poke in that setup.
The good thing with an Evo is you'll always be able to get spares quickly, well at least it's good for me with my flying style...
Guys, drop the folding props. No need and less efficient
Quote from: Cypher on February 05, 2015, 06:12:23 PM
Less efficient when spinning, more efficient when not spinning.
Yeah, And anyway you want to put brake on the ESC, else your prop spins round and busts when you land :'(
regards
Andy
Quote from: Cypher on February 05, 2015, 06:12:23 PM
Less efficient when spinning, more efficient when not spinning.
My prop is always spinning!
Quote from: Brucey on February 05, 2015, 08:05:01 PM
Quote from: Cypher on February 05, 2015, 06:12:23 PM
Less efficient when spinning, more efficient when not spinning.
My prop is always spinning!
That grass doesn't cut itself!
Lol!
Quote from: Cypher on February 06, 2015, 05:44:56 PM
ipeel, what type of spray paint did you use on the foam?
Just regular Halfords stuff, any acrylic spray paint should be fine mate.
Ok so I've just pushed the button on one of these now! Swapping out my Skywalker since it never gets used!
Need to decide on the power setup now though, is an inrunner motor recommended?
Quote from: iwan_canobi on February 06, 2015, 07:41:03 PM
Ok so I've just pushed the button on one of these now! Swapping out my Skywalker since it never gets used!
Need to decide on the power setup now though, is an inrunner motor recommended?
Buy this (http://www.fpvhub.com/index.php/topic,30948.0.html), looks perfect and a decent price.
Quote from: Cypher on February 06, 2015, 07:44:33 PM
Wahey Ewan! You and me, loch Lomond, formation flying... Deal?
Love my OS motor mate... A few pennies but worth it!
Sounds idyllic, bit of a road trip for me!
Cool
Looks good ipeel, may go with that!
A Loch Lomond version of mad dogs would be awesome! I know the perfect spot! :)
I had the same problem... but it made no difference tbh
Oh, that's to hold the lid in place at the front in theory, but I didn't use that approach. You're better off laminating the lid with extra film at the front and using that extra film to fix the lid to the frontside of the ply at the back of the camera bays to create a hinge.
See this post (http://www.fpvhub.com/index.php/topic,22985.msg182065.html#msg182065).
My plate is there (GoPro mount) but not doing anything.
The plate you do really need is a similar affair at the back of the gubbins bay, on mine that's got a velcro strap as has the back of the lid and this fixes the hatch in place.
Finished! Well just the wing tips to stick on (any suggestions?) And a config for Ruby from Jim.
It's worked out 300g lighter than before. Can't wait to try it!
Fantastic job mate, good work. I just stuck my winglets on with POR but yours may be a bit bigger than mine.
Are you maidening tomorrow? I was planning on going to the Barn Field in Olney as the weather looks pretty calm.
Thanks, I've got a set of smaller ones too.
I will maiden tomorrow IF Jim gets back to me in time!
What field is that? The normal one in Olney?
Quote from: Brucey on February 07, 2015, 05:59:48 PM
Thanks, I've got a set of smaller ones too.
I will maiden tomorrow IF Jim gets back to me in time!
What field is that? The normal one in Olney?
Let me know if you are going guys. I am oncall tomorrow, but will swing by if free.
Quote from: Brucey on February 07, 2015, 05:59:48 PM
Thanks, I've got a set of smaller ones too.
I will maiden tomorrow IF Jim gets back to me in time!
What field is that? The normal one in Olney?
Yes mate, the one near my old house with the beacon.
Simon, unless it's absolutely freezing I'll be up there, charging batteries now! I'll text you when I leave but I'm hoping to be up there about 11:30ish.
I'll also have the Rocket Raven with me.
Quote from: Cypher on February 08, 2015, 07:58:23 AM
Ok so decided to go for a different colour scheme.
(http://tapatalk.imageshack.com/v2/15/02/07/3a4f039e10b2948b4aef62f311388090.jpg)
Great choice!
I know you were just seeing what it looks like, but you know those elecons were the wrong way round?
Quote from: Cypher on February 08, 2015, 03:18:59 PM
Can't decide which servos to use. Futaba S9202 (standard size) or corona ds929mg (micro).
Standard size.
Quote from: Brucey on February 07, 2015, 05:15:31 PM
Finished! Well just the wing tips to stick on (any suggestions?) And a config for Ruby from Jim.
It's worked out 300g lighter than before. Can't wait to try it!
Just in case you couldn't quite make out the detail on the underside of Brucey's Evo, here's a close-up:
(http://www.peely.com/wp-content/uploads/2015/02/vlcsnap-2015-02-08-14h36m26s29.png)
Hehehe,
Same incident , different perspective.
(http://img.photobucket.com/albums/v477/simfin/venturi_zps18979c7b.jpg) (http://smg.photobucket.com/user/simfin/media/venturi_zps18979c7b.jpg.html)
Awesome!
Maiden went well, just a touch to much up trim for the initial launch, but nothing a bit of power couldn't deal with ;D
Quote from: Brucey on February 08, 2015, 04:09:07 PM
Awesome!
Maiden went well, just a touch to much up trim for the initial launch, but nothing a bit of power couldn't deal with ;D
Yeah, a little bit of reflex on the elevons there!
http://youtu.be/HE8eOjPe2Lo (http://youtu.be/HE8eOjPe2Lo)
Formation Venturi flypast.
http://youtu.be/Vg2TbDqNja4 (http://youtu.be/Vg2TbDqNja4)
Very nice work on those Venturi's
Cool vid
Yeah standard size servos. I'm using hitec 5485hb which are digital and with the karbonite gears
Or you can check the 635hbs if you want analog.
Got the recommendation from dogzilla.
Looks like a good day Yesterday! Those Venturis look great.
regards
Andy
Quote from: Cypher on February 08, 2015, 10:47:55 PM
Is everybody using standard servos for this build?
Yep', Hitec HS645MG analogues in mine.
Think I'll order some of the digitals for mine then. Is a 60A (80A burst) ESC enough? Or do I really need an 80A? Was looking at this -
http://www.servoshop.co.uk/index.php?pid=EMAXHS60U&area=ESC (http://www.servoshop.co.uk/index.php?pid=EMAXHS60U&area=ESC)
Quote from: iwan_canobi on February 09, 2015, 09:51:56 AM
Think I'll order some of the digitals for mine then. Is a 60A (80A burst) ESC enough? Or do I really need an 80A? Was looking at this -
http://www.servoshop.co.uk/index.php?pid=EMAXHS60U&area=ESC (http://www.servoshop.co.uk/index.php?pid=EMAXHS60U&area=ESC)
I only use analogue because they're reported to emit less RF noise.
You'd get away with a 60A ESC so long as you retro-fit a PC northbridge heatsink to it, TBH I'd still do that with an 80A ESC (and have done on mine).
This guy on eBay (http://www.ebay.co.uk/itm/Heat-sink-ESC-heatsink-various-sizes-inc-thermal-silica-tape-2-cable-ties-/141257268618?pt=UK_ToysGames_RadioControlled_JN&var=&hash=item20e396dd8a) sells heatsinks of various sizes which I've used on ESC and VTX kit.
Neil.
For those wanting some sensible endurance stats, I didn't break any personal records or anything yesterday, even for this airframe, but the wind was calm enough to get some good stats.
My setup yesterday was as follows:
2x 3300Mah 4S Nano-techs in parallel, reasonably well looked after
9x6 APC-e prop
1250Kv 35mm SK3 motor
AUW 2000g
Outside temperature: 4 degrees celsius
Out to 7.3Km and back in 14m using 2839Mah.
Total flight time after the out and back plus a bit of formation flying with Brucey was 27 minutes, 5474Mah consumed and 29.5 Km flown.
Neil.
Quote from: iPeel on February 09, 2015, 10:30:48 AM
Quote from: iwan_canobi on February 09, 2015, 09:51:56 AM
Think I'll order some of the digitals for mine then. Is a 60A (80A burst) ESC enough? Or do I really need an 80A? Was looking at this -
http://www.servoshop.co.uk/index.php?pid=EMAXHS60U&area=ESC (http://www.servoshop.co.uk/index.php?pid=EMAXHS60U&area=ESC)
I only use analogue because they're reported to emit less RF noise.
You'd get away with a 60A ESC so long as you retro-fit a PC northbridge heatsink to it, TBH I'd still do that with an 80A ESC (and have done on mine).
This guy on eBay (http://www.ebay.co.uk/itm/Heat-sink-ESC-heatsink-various-sizes-inc-thermal-silica-tape-2-cable-ties-/141257268618?pt=UK_ToysGames_RadioControlled_JN&var=&hash=item20e396dd8a) sells heatsinks of various sizes which I've used on ESC and VTX kit.
Neil.
Cheers Neil, I've got access to heatsinks that I can use so thats no bother. I'll probably just go with 80A to give some more headroom anyway, I'm trying not to scrimp on this build!
Interesting stats and probably a similar setup to what I will be using (2x 4S 3000mah). My batteries are cheap Zippys though so hopefully they will be up to the job! Been fine on my quad so hopefully in parallel they will be ok.
Quote from: iwan_canobi on February 09, 2015, 10:57:52 AM
Interesting stats and probably a similar setup to what I will be using (2x 4S 3000mah). My batteries are cheap Zippys though so hopefully they will be up to the job! Been fine on my quad so hopefully in parallel they will be ok.
Yeah, there's not much in it weight wise between a 60 and an 80 anyway.
On the battery-front, Brucey uses Zippys in his and up to the point where he rammed one into a goalpost at 100MPH they looked in perfect nick.
Here's the complete video of the caper:
http://youtu.be/eXM5mxUKYFQ (http://youtu.be/eXM5mxUKYFQ)
I'm still trying to fathom a strange patch of interference in the middle of nowhere about 5Km from where I launch from, it disappears when I fly through it yet my helical is still pointing in the same direction i.e. i am the other side of the patch of interference. I'm going to try a different channel next time.
It's funny that whenever I upload a video of flying with Brucey, YT offers me this:
(http://www.peely.com/wp-content/uploads/2015/02/Bruceytag.png)
:)
Ok, so I'd rather order everything from the same place to save on postage, what do you guys think about the following:
Servo:
http://www.hobbyking.com/hobbyking/store/__36265__BMS_621DMGplusHS_High_Speed_Digital_Servo_MG_7_2kg_10sec_46_5g_EU_warehouse_.html (http://www.hobbyking.com/hobbyking/store/__36265__BMS_621DMGplusHS_High_Speed_Digital_Servo_MG_7_2kg_10sec_46_5g_EU_warehouse_.html)
ESC:
http://www.hobbyking.com/hobbyking/store/__36626__Turnigy_Brushless_ESC_85A_w_5A_SBEC_EU_warehouse_.html (http://www.hobbyking.com/hobbyking/store/__36626__Turnigy_Brushless_ESC_85A_w_5A_SBEC_EU_warehouse_.html)
Quote from: iwan_canobi on February 09, 2015, 11:39:56 AM
Ok, so I'd rather order everything from the same place to save on postage, what do you guys think about the following:
Servo:
http://www.hobbyking.com/hobbyking/store/__36265__BMS_621DMGplusHS_High_Speed_Digital_Servo_MG_7_2kg_10sec_46_5g_EU_warehouse_.html (http://www.hobbyking.com/hobbyking/store/__36265__BMS_621DMGplusHS_High_Speed_Digital_Servo_MG_7_2kg_10sec_46_5g_EU_warehouse_.html)
ESC:
http://www.hobbyking.com/hobbyking/store/__36626__Turnigy_Brushless_ESC_85A_w_5A_SBEC_EU_warehouse_.html (http://www.hobbyking.com/hobbyking/store/__36626__Turnigy_Brushless_ESC_85A_w_5A_SBEC_EU_warehouse_.html)
I think I've used that SKU of ESC before and it worked OK, the low voltage cutoff's a bit girly though so I'd disable that feature.
Standard size BMS servos I've not used but I have used the mini servos and they seemed decent enough, personally though my choice would be a Hitec servo and JP energ pro ESC.
Remember you should be using a separate BEC, something like a turnigy 5A low noise.
Quote from: Col_M on February 09, 2015, 12:09:57 PM
HK have a blowout sale on in the UK warehouse right now, I've just ordered some of the 25C 3300 4S Nano-Techs for £20 a pop and a 100A YEP ESC for my Venturi. Things are starting to come together.
I'd thoroughly recommend one of these seeming as they're in the sale: http://www.hobbyking.com/hobbyking/store/__58042__Turnigy_110w_Heat_Sealing_Iron_with_Sock_and_Stand_220_240v_UK_Plug_UK_Warehouse_.html (http://www.hobbyking.com/hobbyking/store/__58042__Turnigy_110w_Heat_Sealing_Iron_with_Sock_and_Stand_220_240v_UK_Plug_UK_Warehouse_.html)
Quote from: Col_M on February 09, 2015, 12:09:57 PM
HK have a blowout sale on in the UK warehouse right now, I've just ordered some of the 25C 3300 4S Nano-Techs for £20 a pop and a 100A YEP ESC for my Venturi. Things are starting to come together.
I was looking at those ESC's but it looked like they have a load of heli specific features, I take it they will still work ok on a fixed wing motor?
I have the Turnigy BEC to use as well already.
Ok, Hitec HS635's ordered, and I just went for the Turnigy 85A ESC.
I'll probably go for the CAM Carbon 9x6 prop that I used on the skywalker. Solid quality and had a great amount of thrust on the 860kv or so motor I had on that, so on 1200kv it will be mental I imagine! :D
The APC or the CAM will be just fine, I've used both in fact and it's hard to tell the difference. I only use the APC because Brucey does, and I only need to be as fast as him. ;)
What have people been doing for the front hatch to cover the cameras ? Mine was also missing the slot for the top hatch to lay onto, but not to worry. Few ideas on front hatches would be appreciated though.
Quote from: benitoculito on February 09, 2015, 06:59:28 PM
What have people been doing for the front hatch to cover the cameras ? Mine was also missing the slot for the top hatch to lay onto, but not to worry. Few ideas on front hatches would be appreciated though.
What box did you go for Mobius or GoPro?
On my GoPro version I obviously only need to cover the board cam, as the GoPro fits in the space for the HD cam, with a few sheets of foam to support the back.
I printed a little cover for the board cam:
(http://www.peely.com/wp-content/uploads/2015/02/EvoCameraBoxes.png)
It wasn't the most complicated part I produced but is light and does the job, photographing it is the hardest thing:
(http://www.peely.com/wp-content/uploads/2015/02/EvoBoardCamCover.png)
If anyone wants one I can do white, black or orange.
Neil.
Quote from: iPeel on February 09, 2015, 06:41:24 PM
The APC or the CAM will be just fine, I've used both in fact and it's hard to tell the difference. I only use the APC because Brucey does, and I only need to be as fast as him. ;)
It would be interesting to do back to back tests to see if there was a difference.
Quote from: Brucey on February 09, 2015, 07:39:17 PM
It would be interesting to do back to back tests to see if there was a difference.
Not our usual branch of science Brucey, but the change would be good!
I'll pack a couple of CAMs for next time we're out.
Perfect, could I get one in Orange please ? I've got the GoPro box too. Is it possible to get it so it covers both cameras ?
Quote from: benitoculito on February 09, 2015, 08:03:36 PM
Perfect, could I get one in Orange please ? I've got the GoPro box too. Is it possible to get it so it covers both cameras ?
The problem is it clips against the ply panel in the middle of the bay, if I made it go right across you'd never get it off!
I can do that, but not sure how you'd set the GoPro to record then get it out again.
Quote from: iPeel on February 09, 2015, 11:17:46 AM
Here's the complete video of the caper:
http://youtu.be/eXM5mxUKYFQ (http://youtu.be/eXM5mxUKYFQ)
I'm still trying to fathom a strange patch of interference in the middle of nowhere about 5Km from where I launch from, it disappears when I fly through it yet my helical is still pointing in the same direction i.e. i am the other side of the patch of interference. I'm going to try a different channel next time.
It's funny that whenever I upload a video of flying with Brucey, YT offers me this:
(http://www.peely.com/wp-content/uploads/2015/02/Bruceytag.png)
:)
Brucey bonus! :D
Just watched this and it looks like there is still quite a bit of yaw wobble present, I wonder if I should try adding some vertical fins on the sides of the center section similar to the Z3 to reduce that. My hack job doesn't seem to have much in the way of the wagging with those fins there.
Quote from: iwan_canobi on February 09, 2015, 09:16:11 PM
Just watched this and it looks like there is still quite a bit of yaw wobble present, I wonder if I should try adding some vertical fins on the sides of the center section similar to the Z3 to reduce that. My hack job doesn't seem to have much in the way of the wagging with those fins there.
Having owned and flown an actual Z3 which still suffered from yaw wobble, at anything above stall speed this wing is better in so many ways, it's meant to cruise around at 60Kph and we were flying much slower.
:D I don't doubt it, was just thinking out loud really as to whether adding the fins may help a bit.
Once mine arrives I might have a play at making some removable ones that could attach to the inside of the plywood section. Would be interesting if I can do it to do a comparison of on vs off and see if they actually make any difference. In my head they should help, but I don't know much about actual aerodynamics so I have a simplistic view! :P
I really don't see much wag at all. There was some turbulent air caused by the wind blowing through the trees behind us, so when low and banking it did wobble.
Wings will yaw, it's a fact of not having a tail bud.
Edit: I wrote this before seeing your reply
Yeah, I don't want to come across as saying it doesn't look good as thats not what I mean at all. I wouldn't have bought one if I didn't think it looked great!
I was watching back some of my old videos there on the botched together wing, and it does wobble as well. I think I get selective memory sometimes!
iPeel - can I order one of the little plastic inserts as well, in black if possible?
Cheers,
Ewan
Quote from: Cypher on February 10, 2015, 10:36:21 PM
Did you find this location of the control horn to be good?
Yeah, works great. The control horn needs to be at the front of the elevon for definite, I've built then farther back in the middle of the elevon and got told off by Rob and John. You might want the servos a little farther back though, mine are as far forward as you can get away with and in fact I need a slight bend in the control rod to miss the top of the wing.
Neil.
Quote from: Cypher on February 11, 2015, 08:32:39 AM
Think I ended up doing the same as you also! Cheers for the help.
You'll be fine there, you're on the right side of the camber.
Quote from: Col_M on February 11, 2015, 01:24:49 PM
Where do you guys get those post type control horns?
I saw them on EFPV and was holding off buying them, now it seems that store is no longer with us and I'm on the lookout for them :)
edit: ignore me! I should have Googled before asking, they're quite common lol
http://alshobbies.com/shop/lookupstock.php?pc=34792 (http://alshobbies.com/shop/lookupstock.php?pc=34792)
This shop is actually driving distance from me, so I didn't buy online.
Mine just arrived today, have to say I'm really impressed so far, looks really nice! My wing tips look a bit taller as well, and have a nice carbon reinforced rod through them.
Can't wait to get building!
Quote from: Cypher on February 12, 2015, 08:11:43 AM
How have you guys been securing the top hatch down? Using its own friction? Tape? Velcro?
At the front by making a laminate hinge over the back of the camera bay and at the back using velcro straps. If you don't have the plate at the back of the equipment bay like my prototype does then use a velcro strap stuck to the vertical foam section in the front of the motor bay.
It doesn't need to be really secure, just enough to stop it doing an "air brake" when you come in to land. When you're flying the air pressure will be enough to keep the hatch down.
Details of mine here (http://www.fpvhub.com/index.php/topic,22985.msg182065.html#msg182065).
Looking good mate
Looks awesome buddy, what prop are you using ?
Taking shape now, next step is to cut out holes for servos, VTx and Rx!
(http://s30.postimg.org/8lr5snlvh/venturi.jpg) (http://postimg.org/image/8lr5snlvh/)
Greig, I find the overhead toss pretty reliable, just grip on one side and give it a good loft over your head! Gives plenty of time for it to even out and pick up speed, and crucially for you to get hands on the sticks.
Looks like iPeel and Brucey use similar methods!
Stop being a bad influence!:P
I'd love to but £90 an Rx is just too much! Should have ~5km range with the L9R so that should be plenty for me!
Quote from: Cypher on February 12, 2015, 08:36:42 PM
Literally just found iPeel's video on this matter!
Bruno's FPV Evo maiden launch (http://www.youtube.com/watch?v=HE8eOjPe2Lo#ws)
I think the thumb on top of the wing is where I was getting it wrong - more of a natural (and powerful) throw this way.
Now is your chance to change to 433 and 2.4 Ewan.... go on, you know you want to!
;D
That's me launching. I have thumb on top and fingers underneath. Give it full beans and a good chuck, no half measures, no hesitation.
Looking good chaps, looking good.
About 180-185mm back from the leading edge of the wing Cyper, that should do for the maiden and about 190 for normal flight should be the perfect CG.
A "baseball" chuck is definitely the most reliable, a javelin stance with the wing in your hand stretched fully back and a good lob with all your body, thumb over the top of the wing and fingers underneath. You'll have plenty of power in that setup to launch it great first time. I used to side launch and changed to overhead/baseball at the request of Brucey, the spontaneity of my launches wasn't good for his blood pressure.
About 2-3mm of up reflex on the elevons is good, more like 4mm for the maiden for sure.
Hi Cypher, I use those Hawkeye DTF UHF modules you listed. Not tested them together yet at range but I used the deluxe Tx with the 100mW orange rx and got out to 3KM and still was only getting occasional packet loss. Would be confident in them getting out to 10KM but have no way to monitor RSSI yet.
Quote from: Cypher on February 12, 2015, 01:25:57 PM
All complete! What a great job Rob! Absolutely love it! Bring on the weekend
(http://tapatalk.imageshack.com/v2/15/02/12/ba3d8f8cbbaf50aab3f73324555eaee6.jpg)
Looks good but I'm not sure you're going to fit it in that pink backpack of yours :P
Quote from: Cypher on February 13, 2015, 12:46:55 AM
Had to add over 100g of weight for it to balance on the CG. Anybody else had to add weight?
No, what batts are you using? By the AUW you're running you should have enough weight forward of the CG.
Also you definitely measured form the leading edge of the wing and not the centre bay?
If you're struggling to balance it forward, move the motor forward to the other side of the mount.
Quote from: iPeel on February 13, 2015, 08:35:38 AM
Quote from: Cypher on February 13, 2015, 12:46:55 AM
Had to add over 100g of weight for it to balance on the CG. Anybody else had to add weight?
No, what batts are you using? By the AUW you're running you should have enough weight forward of the CG.
Also you definitely measured form the leading edge of the wing and not the centre bay?
If you're struggling to balance it forward, move the motor forward to the other side of the mount.
How heavy would that folding prop be compared to yours iPeel ? Could that be dragging the weight back a bit ?
Yep', that's the right point to take the measurement. I'm running those battery sizes as well and have the batteries as far back as they can go, you should have about 30mm to play with pushing the batteries forward.
If you don't want to reverse the shaft the the motor, you could look at repositioning the motor mount forwards as far as you can, it's probably too long to reverse the mount and get decent prop clearance?
Maiden it with the weight in the nose then you know what target CG you're looking for.
Mine is 2.2kg, my old one was 2.5kg. Weight isn't a problem mate, just get the cg set and you'll be fine
Also get it balanced left/right
Finally have the funds and will be placing my order shortly.
My 2 questions for now:
is the special tape for attaching the ailerons is a part of the kit or needs to be bought separately?
I'm planning to use 2x4000 4S Multistar batteries, the total weight is about 650 grams. This sounds ok?
I used 3M Blenderm tape, and the weaving method. It's very strong
I use this http://www.ryman.co.uk/3m-scotch-mailing-tape-50mm-x-20m-with-dispenser
Like this http://youtu.be/5sdvJB6qN8E
Not sure how much my batteries weigh
Quote from: rank on February 13, 2015, 05:04:32 PM
Finally have the funds and will be placing my order shortly.
My 2 questions for now:
is the special tape for attaching the ailerons is a part of the kit or needs to be bought separately?
I'm planning to use 2x4000 4S Multistar batteries, the total weight is about 650 grams. This sounds ok?
If it's these batteries:
http://www.hobbyking.com/hobbyking/store/__56847__Multistar_High_Capacity_4S_4000mAh_Multi_Rotor_Lipo_Pack.html (http://www.hobbyking.com/hobbyking/store/__56847__Multistar_High_Capacity_4S_4000mAh_Multi_Rotor_Lipo_Pack.html)
They they'll just be OK. These are stubbier than the normal aero batteries but taller, they will just, but only just fit in the height of the battery bay at the shallowest part of the bay.
Quote from: Cypher on February 14, 2015, 03:50:48 PM
What do you guys recommend for the high and low rate throws?
Also does it need some expo?
Mine are 15mm low rate and 20mm high rate for elevator movement and the same for aileron movement. That's measured at the end of the elevon nearest to the winglets.
I'm running 50% Expo.
Quote from: Cypher on February 14, 2015, 04:45:57 PM
Thanks iPeel. Sorry forgive me but is that total travel or travel from level?
Travel from level.
Will you just hurry up, we're all waiting for the maiden! :D
Cool!
Remember, video or it didn't happen.
Good luck!
Looking very nice indeed
hmm.. You and Coyote should team up and open a FPV art gallery...
http://www.fpvhub.com/index.php/topic,18343.msg196338.html#msg196338 (http://www.fpvhub.com/index.php/topic,18343.msg196338.html#msg196338) :)
All the best for the maiden flight..
regards
Andy
Looking very nice. Its good that normal acrylic car sprays (I assume thats what you're using) seem to cover EPP very well. I remember reading loads of threads a couple of years ago about specialists paints and sprays to cover planes.
I'm torn between four planes at the moment; Flyingwings Veturi Evo, Flyingwings Raven racing set, Hobbyking Skipper and Durafly EFX Racer.
Yeah normal car paint works well.
That's quite a mix of planes Neil, maybe ask yourself what you what to get out of/do with a plane. I imagine the evo will tick a fair few, fast and low, cruiser, easily hold fpv gear
Had some fun with the Vent this weekend http://www.fpvhub.com/index.php/topic,31900.0.html (http://www.fpvhub.com/index.php/topic,31900.0.html)
I was impressed how well the vent was suited to this style. Effortless climb and predictable glide down. Shame there aren't more mountains round here!
Hmm, there's a reason that the winglets go underneath the wing too. Possibly to do with reducing the chances of a stall? I'm sure someone here will be able to elaborate what happens.
Looking good! How easy is it to reverse the shaft on these motors? Just wondering what way to do mine.
My decals arrived today, got an awesome idea (at least I think it is anyway) so can't wait to get this progressed! :D
I mounted my motor outboard to get the best balance, otherwise mine was a bit nose heavy, Cypher found his too tail heavy though so be prepared to swap based on your final CG tendency.
Lots of very sweet builds going on here! Will the center section be available to purchase individually out of curiosity?
You'd have to email rob at flying wings. Do you have the mk1 version then?
Yeah, I'm on my second, if I have a bad crash again then maybe grafting in a new center section would be just the job
What bolts have people use to attach the motor mount? I don't have any lying around that are fit for the job I dont think. M4 or M5 work?
Got all the cutouts done in the wing today, now need to solder up some wires for the longer runs to VTx and Rx. Will wait and use the solder station in work though as its too bloody cold in the shed!
Mr IPeel what can I say, you nailed it. I am extremely chuffed with the camera bay cover its awesome. Great fit, really tight and precise, have got the morning off tomorrow so will have a proper fiddle with things, but it clicked it perfectly.
Thank you very much, fantastic job.
Cool, glad it fitted right, looking forward to the maiden!
The maiden should have been a couple of weeks ago but I have been fannying about trying different things. Was going to run this with a storm osd but just couldn't get it settle properly and it just didn't feel right on the bench, so am going to try sticking an eagle tree pro osd in it and see how that goes.
Quote from: iwan_canobi on February 20, 2015, 07:19:47 PM
What bolts have people use to attach the motor mount? I don't have any lying around that are fit for the job I dont think. M4 or M5 work?
Got all the cutouts done in the wing today, now need to solder up some wires for the longer runs to VTx and Rx. Will wait and use the solder station in work though as its too bloody cold in the shed!
I used M4 bolts, they were tight but went in without drilling.
Cheers guys! Progress is a bit slow at the moment but hoping to get her in the air over the next few weeks! I have all the bits required now, apart from time!
Nice flight out with ipeel, loads of gas left in the tank.
http://youtu.be/hnSQMTmpwSQ
Looking good, but I'd get that esc out the back by the motor so it can get some cool air
Quote from: Brucey on February 21, 2015, 08:57:46 PM
Nice flight out with ipeel, loads of gas left in the tank.
http://youtu.be/hnSQMTmpwSQ (http://youtu.be/hnSQMTmpwSQ)
Loving the trip home through the wind farm and the Sun backdrop. :)
Quote from: Brucey on February 21, 2015, 08:57:46 PM
Nice flight out with ipeel, loads of gas left in the tank.
http://youtu.be/hnSQMTmpwSQ (http://youtu.be/hnSQMTmpwSQ)
Looks like a fun day out :)
regards
Andy
It was fun, but only a quick hour after work. Once the evenings get longer it will be more worth while.
ezUHF and 2.4g video
Linear, I've not found the need for circular
Brucey went cruising ladyboys with Trappy in Hong Kong, and got a TBS tuned Yagi as a souvenir; it performs really well.
Hey hey hey.... there was no evidence.....!
Quote from: Cypher on February 22, 2015, 10:22:14 PM
Quote from: iPeel on February 22, 2015, 10:17:48 PM
Brucey went cruising ladyboys with Trappy in Hong Kong, and got a TBS tuned Yagi as a souvenir; it performs really well.
Lol! Ahh long range ladyboy cruising, sounds like quite the afternoon was had! Yeh I also have a TBS yagi and what a difference in reception! Really impressed.
And a TBS Groundstation the same as him to boot, is your antenna tracker called Chris too?
Quote from: Cypher on February 22, 2015, 10:25:59 PM
Quote from: Brucey on February 22, 2015, 10:24:12 PM
Hey hey hey.... there was no evidence.....!
Ah I take it you forgot to press record on your DVR then? That old chestnut! ;)
Lol!
I'm using the new 700mw irc vtx
right guys, seriously contemplating one of these now...
would it take a single 5000mah 4S?
Depends on the dimensions, better off with 2x 3000's like it's designed for
is that 3000mah 4S?
Yeah 2 of them, or I think ipeel it's running 2 3300 4s nano techs
Quote from: Brucey on February 23, 2015, 10:46:31 PM
Yeah 2 of them, or I think ipeel it's running 2 3300 4s nano techs
Indeed I am: http://www.hobbyking.com/hobbyking/store/%5F%5F34689%5F%5FTurnigy%5Fnano%5Ftech%5F3300mah%5F4S%5F35%5F70C%5FLipo%5FPack%5FUK%5FWarehouse%5F.html (http://www.hobbyking.com/hobbyking/store/%5F%5F34689%5F%5FTurnigy%5Fnano%5Ftech%5F3300mah%5F4S%5F35%5F70C%5FLipo%5FPack%5FUK%5FWarehouse%5F.html)
Looking good! Yeah I guess laminating isn't hard, just time consuming.
It would be a bit fiddly anyway getting two battery leads into the equipment bay, you're better off having a lead with 2X XT60's in the battery bay. I've done that and find that the connector fits nicely between the batteries and provides enough pressure to keep the batteries in place:
(http://www.peely.com/wp-content/uploads/2014/12/IMG_0750-e1417984794330.jpg)
Ordered mine this morning as a standby replacement for my FX61 which is looking a bit rough these days.
Hopefully most of my gear should transfer across,apart from maybe the motor.
I`ve never laminated a wing before,what kind of iron will I need,will it need to be a special one or can I borrow the wife`s? ;D
Will be a bit different to the fx61 I think Jake :-) Thinking of getting one myself!
Sent from my Nexus 5 using Tapatalk
Quote from: Jake Bullit on February 26, 2015, 12:25:54 PM
Ordered mine this morning as a standby replacement for my FX61 which is looking a bit rough these days.
Hopefully most of my gear should transfer across,apart from maybe the motor.
I`ve never laminated a wing before,what kind of iron will I need,will it need to be a special one or can I borrow the wife`s? ;D
I use the normal house Iron, its a bit big and heavy, but works fine. Just make sure you put the laminate on the foam the right way round... adhesive side down.... otherwise it gets messy!
Quote from: Brucey on February 26, 2015, 02:24:24 PM
Quote from: Jake Bullit on February 26, 2015, 12:25:54 PM
Ordered mine this morning as a standby replacement for my FX61 which is looking a bit rough these days.
Hopefully most of my gear should transfer across,apart from maybe the motor.
I`ve never laminated a wing before,what kind of iron will I need,will it need to be a special one or can I borrow the wife`s? ;D
I use the normal house Iron, its a bit big and heavy, but works fine. Just make sure you put the laminate on the foam the right way round... adhesive side down.... otherwise it gets messy!
Yes wouldn't want my blood all over it:D
I think wifey has a little travel iron somewhere that should do the job.
Sounds like a plan. The Falcon owners club meet at Mad Dogs, we now need a Venturi owners club :D
Yes, I basically cut the top bit of foam away at the thinnest part just above where the spar goes, then hot glued them back together after I'd glued the bottom plate in.
(http://www.peely.com/wp-content/uploads/2015/02/IMG_0723-e1425032251727.jpg)
(http://www.peely.com/wp-content/uploads/2015/02/IMG_0724-e1425032264927.jpg)
That also means you can cut a section away for ESC cables that eventually go through the foam and leaves a nice flat top section:
(http://www.peely.com/wp-content/uploads/2015/02/IMG_0762-e1425032511495.jpg)
Yup, tech has moved on a long way very quickly.
For info I glued the foam in the centre section and cut the foam as iPeel did.
Made some progress on mine today, got the electronics all connected and tested with the cables I crimped up the other night, then laminated the wings. Started laying out the electronics and dry fit it all, but will need to route some cabling underneath I think to tidy things up properly!
Also a sneak peak of the design scheme I'm going with! :D
(http://s13.postimg.org/ui2h9xkqb/2015_02_27_14_38_32.jpg) (http://postimg.org/image/ui2h9xkqb/)
(http://s13.postimg.org/3y9w7sk6r/2015_02_27_15_03_08.jpg) (http://postimg.org/image/3y9w7sk6r/)
(http://s13.postimg.org/f7y0ozzub/2015_02_27_15_50_52.jpg) (http://postimg.org/image/f7y0ozzub/)
Looking good
Quote from: Col_M on February 28, 2015, 01:44:00 PM
While I've got the bottom foam off is it worth mounting the motor mount under the plywood deck, as going by the talk in Ben's thread it can benefit getting the thrust line down?
I would, Brucey did and there's no complaints from him.
Well, by putting it underneath you can't adjust the mount too help with the cg. But that hasn't been a problem for me.
I still think I might need to bend the mount back a bit as it seems to climb under power. Its to early to tell has I still need to get it fully trimmed out.
Think it looks nicer with the mount hidden underneath
how is it "designed" to be mounted? on top or underneath?
surely testing was done.
On top... testing was done by me and iPeel.... mainly iPeel
does it come with laminate, or do I have to add that in the cart too? got my finger hovering over the buy now button ;)
I think you have to add it. Others who bought it online can confirm I'm sure.
Buy it!
I added it to my order. Hope to receive it next week.
Stick a fork in me, I'm done!
Well, pretty much anyway! Still need to decide where to put the GPS receiver as I completely forgot about it to be honest, and then need to sort out rates and expos and all that fun stuff. Wiring isn't as tidy as I'd like, but everything is working fine!
Overall really pleased with how it looks, CoG seems to be in the right ball park and it seems solid! Looking forward to getting it in the air now! If only the weather would play ball....
Bottom turned out well, although annoyingly you can see the dark patches where the servos and vtx etc are. Still, should look nice doing overhead passes! :D
(http://s23.postimg.org/tlgjgrmx3/2015_02_28_17_31_01.jpg) (http://postimg.org/image/tlgjgrmx3/)
(http://s23.postimg.org/dje0adn7r/2015_02_28_17_31_18.jpg) (http://postimg.org/image/dje0adn7r/)
(http://s23.postimg.org/qjl5t2kef/2015_02_28_17_31_36.jpg) (http://postimg.org/image/qjl5t2kef/)
(http://s23.postimg.org/tvo2041jb/2015_02_28_17_31_52.jpg) (http://postimg.org/image/tvo2041jb/)
(http://s23.postimg.org/suntazkjr/2015_02_28_17_36_20.jpg) (http://postimg.org/image/suntazkjr/)
(http://s23.postimg.org/j6ad7upqf/2015_02_28_17_37_15.jpg) (http://postimg.org/image/j6ad7upqf/)
Thundercats... Thundercats... Thundercats... Go!
Looks great!
Another stunner!
We need a Venturi meet up!
We definitely need a meet up, was going to maiden mine today, but I got far to drunk last ! Arggghh never drinking again. Think I've got mine pretty much ready to go. I keep getting "graphics error code 0D00000 email support" on my eagle tree pro osd. It doesn't seem to effect control of the plane so was just gonna go for it, but it does make me worry if there is a fault somewhere. But let's deffo arrange a meet up for a load of Venturi's, theres a place we can fly which is near the meet up at Falmer on the 14th of March.
Yo,
The elevons should follow the sweep up of the bottom of the wing at the trailing edge as if they were part of the wing, you can use a ruler.
Hope that makes sense
Ta Rob
Looks fantastic!
Maiden should be happening at lunchtime today, slightly papping myself as its been sitting ready to go for so long! Building up the fear! Will report back this afternoon....
Good stuff! Success with the Vector?
Good stuff!
Maiden completed! Flew well, so much power it's unreal! Was really twitchy so had to dial the rates down quite a bit, and also the storm OSD needs tuning down as RTH and pilot assist were all over the place! Think my physical throws are a bit much so may move on the control horns.
Also need to change board cam as the picture was terrible! But overall happy for a maiden, came down nice and smooth for both landings! Should get a good few flights in tomorrow!
(http://s11.postimg.org/tiob06znz/15_1.jpg) (http://postimg.org/image/tiob06znz/)
Decided to sell this, had another flight today and its not for me I don't think! Flies absolutely fine, I just think I want to stick more with a skywalker style layout. Its in the classifieds section if anyone is interested, RTF, just add Rx and Vtx!
Just bought mine :)
Build thread in the Delta Wings section or Members Hangars?
Quote from: Stellaship on April 02, 2015, 11:12:28 AM
Just bought mine :)
Build thread in the Delta Wings section or Members Hangars?
I'm new to the venturi club too- maidening mine this weekend with a bit of luck.
If it's a build thread pop it in the members hangers i reckon.
The only bit of advice i can give, having bought mine pre built from a member on here- the build is very professional but the elevons are made from very thin balsa with poor torsional rigidity which is the only thing that let's it down. I reckon they would flex pretty easy at speed so I'm upgrading mine to to normal elevons- the prism/Toblerone shape rather than flat thin balsa.
I intend to do the same with mine at some point, I've bought some 50mm x 9mm triangular stock which I'll trim down to 6mm on the table saw. I'll post something up when I do it, it's just a bit of work which will render my Vent out of action, and I'm flying it too much at the moment.
If anyone's interested, here's the 9.5mm x 50mm trailing edge stock I found, it's hard to find relatively thin 50mm trailing edge:
http://www.slecuk.com/cgi-bin/sh000001.pl?WD=trailing%2050mm%20edge&PN=Trailing%2dEdge%2d9%2e5%2dx%2d50%2e0%2dx%2d915mm%2d%2d%2d%2d3%2d8%2dx%2d2%2d%2dx%2d36%2d%2d%2dL471%2ehtml#SID=9 (http://www.slecuk.com/cgi-bin/sh000001.pl?WD=trailing%2050mm%20edge&PN=Trailing%2dEdge%2d9%2e5%2dx%2d50%2e0%2dx%2d915mm%2d%2d%2d%2d3%2d8%2dx%2d2%2d%2dx%2d36%2d%2d%2dL471%2ehtml#SID=9)
Quote from: Billy_boy_2010 on April 02, 2015, 12:29:30 PM
Quote from: Stellaship on April 02, 2015, 11:12:28 AM
Just bought mine :)
Build thread in the Delta Wings section or Members Hangars?
I'm new to the venturi club too- maidening mine this weekend with a bit of luck.
If it's a build thread pop it in the members hangers i reckon.
The only bit of advice i can give, having bought mine pre built from a member on here- the build is very professional but the elevons are made from very thin balsa with poor torsional rigidity which is the only thing that let's it down. I reckon they would flex pretty easy at speed so I'm upgrading mine to to normal elevons- the prism/Toblerone shape rather than flat thin balsa.
Once they are laminated they are ok. Mine have been good to 100mph on the vent and I used the same material for the 150mph skyfun.
But saying that it will be interesting to see if ipeel notices any difference.
Quote from: Stellaship on April 02, 2015, 11:12:28 AM
Just bought mine :)
Build thread in the Delta Wings section or Members Hangars?
Good news mate! Shout if you need a hand.
OK, I decided to have a go at the elevons, not really as I was having any issues with the ones I had but because, well, I fancied a tinker.
I took the 50mm x 9.5mm trailing edge stock I had and trimmed it on the table saw down to 6mm and added a 35 degree cut to give better down elevator freedom at the joint with the wing:
(http://www.peely.com/wp-content/uploads/2015/04/IMG_0944-e1428080059349.jpg)
I then used the existing elevons to get a rough shape then added an extra cut from 20mm back on the inside edge to around half way along the elevon width:
(http://www.peely.com/wp-content/uploads/2015/04/IMG_0946-e1428080082254.jpg)
After a spray, laminate and reattaching they look pretty good:
(http://www.peely.com/wp-content/uploads/2015/04/IMG_0948.jpg)
yeah yeah, I know my workshop needs tidying. The thickness is about twice that of the normal elevons and is about the same thickness as the back of the wing:
(http://www.peely.com/wp-content/uploads/2015/04/IMG_0949-e1428080111220.jpg)
The weather's crap today, I'll either give them a fly tomorrow or when Brucey and Foamster come over on Sunday.
Neil.
what motor combinations are people using and what power figures are they getting?
currently i've maidened mine with a 35/36 1450kv motor on 4s with a 9x6 folding apc that's doing 72amps and 1100w on the watt meter. this is way more than the motor is spec'd for so i'm planning on propping it down but am curious to know what figures others are running and still maintaining ballistic performance....
cheers guys
derek
On an APC 9x6 prop with an SK3 1250kv I pull 55a on a 4S and get about 130Km/h.
I'm pretty happy with the endurance too, I'd say tops around 15Km out and back with change.
Yeah ditch the folder, no point unless your gliding around. Normal prop is more efficient and I'm yet to break a prop.... well from a normal landing anyway!
Just got one of these. I'll be running it 4s on this motor: http://brchobbies.com/catalog/product_info.php?cPath=103_49&products_id=2239 (http://brchobbies.com/catalog/product_info.php?cPath=103_49&products_id=2239) because I have one already. I'll be using a 10x7 prop. I'm not so bothered about getting a lot of speed, all I really care about is good efficiency and decent cruise speed.
I'm wondering if I should get 2200 or 3300 batteries, of course two packs paralleled. Is there any noticeable difference in the flying characteristics with these batteries? It seems people get plenty of endurance with the 3300s and it seems to fly very nicely, so I might just go with those unless anyone has any objections?
I'll be using an EzOSD with my trusty WDR700, Chainlink Dare (don't laugh, it works) and homemade 2.4 video gear. Should arrive next week and I'm slowly piecing together the bits, so should be done in a couple weeks.
Go with the larger capacity ones, there's plenty of space in side and you'll need the weight up front for the CG.
Yeah large packs for sure
Will do, thanks for the quick replies.
By the way, one thing I noticed on my old Storm is that when I went fast, the thing started to oscillate in pitch. See here: https://www.youtube.com/watch?v=QipMNgqMTvQ (https://www.youtube.com/watch?v=QipMNgqMTvQ)
The Storm is a fair bit thicker with a wider chord wing, so I assume it won't be an issue. Could also have been flutter I suppose.
So does the Venturi come with standard sheet elevons? That's not so good if so, I'd replace them with thicker balsa parts and plane them down to a nice taper.
someone will be along shortly to tell you, but I have the Falcon EVO FPV and it came with substantial balsa elevons which when laminated are solid as a rock and hardly twist or flex
Yeah it comes with balsa elevons, once laminated they will be fine, 100mph and still great control authority.
iPeel has experimented with different elevons made from trailing edge stock.
Another question, any chance 2 4000mAH 4s Nano techs would fit? Dimensions are 173x48x26mm, vs 147x44x26mm for the 3300 4s.
Edit: and thanks for the replies RE the elevons.
Edit: another question, this time regarding lamination. I've covered balsa models many times so I can use an iron etc..., but how well does the lam stick? I can use balsaloc if required. Also, I got the 75 micron stuff from flyingwings, what temperature will it require?
I have the turnigy iron from hobbyking UK warehouse... I had mine set to 2/3 the way from off to full, but I experimented with the film on the stock foam the centre piece is cut from.
you won't need any spray glue, the film sticks great:
Same foam, same film as the Venturi
http://www.fpvhub.com/index.php/topic,36927.0.html (http://www.fpvhub.com/index.php/topic,36927.0.html)
I have an iron with a temp readout so was wondering if anyone had exact figures, but I'll just experiment to see what works.
And thanks for the link, nice build by the way.
cheers, it hasn't flown yet, been away with work since I finished it so need to get my arse back in gear lol
I'm not sure about the batteries, 3300 fit nice, with a bit of space to adjust for cg. It will also provide 30 of cruise, which is enough for me!
Not sure about an exact temp for the laminate, I use the household iron! Experiment, but I suprised how hot you can get it, it's the foam that melts first.
Make sure you post up your progress!
Quote from: Sheldon Holy on May 23, 2015, 01:01:07 AM
I have an iron with a temp readout so was wondering if anyone had exact figures, but I'll just experiment to see what works.
It varies depending on the film, try tacking it at 110-115 degrees on a spare bit of foam and it should be stuck firm but possible to pull off again with a good bit of force.
I usually tack the film in place at a bit lower temperature first then increase the temperature a bit (my iron doesn't have a readout) when the whole wing is tacked down to get the final finish.
I've just joined the Venturi owners club with a part built one that I've acquired from a friend :-) Also have a Ritewing Z2 motor to go on it (1200kv I think) and 80a esc. Also thinking I should really go UHF and 1.3 for this so I can fly nice and low but that will add a whole other level of expense of I decide to do that
Sent from my Nexus 5 using Tapatalk
Welcome, same motor as me, 9x6 prop is great
Cool, will keep you updated on progress :-)
Sent from my Nexus 5 using Tapatalk
Are standard servos acceptable for this? I've got some Futaba S9001s unused as I'm overhauling my Raven 50 heli and installing new digital servos, but the 9001s are really nice and reliable so I'd rather use them than some micro servos.
Yeah, use them, not micros
I received my kit today. I'll get some piccies up tomorrow.
I've assembled the fuselage and I have some feedback already. The laser cutting is pretty poor, and caused some delamination of the edges of the ply in some areas when I pushed them out. Some of the parts had to be cut out with a knife. I don't know much about laser cutting but given how charred the edges of the ply is, maybe the laser isn't quite powerful enough?
Anyway, I've built guillows kits before so having something laser cut at all is always a luxury and it was no problem. The parts fitted together well. I tacked them together with thin CA but I applied PVA to all the joints with a brush - two coats on both sides of each joint. One thing I've learned from building normal balsa/ply LOS models is that thin CA works well but should be avoided. PVA dries pretty quickly and doesn't stick everything and anything together before you know what's happening. It also doesn't ruin clothes. Structurally I much prefer it too, it's far more flexible than CA (which isn't at all) and the joints seem to last much longer. It can also be sanded easily.
Anyway, the two pieces supplied that go on the forward fuselage for alignment of the wings appear to have a problem. With the wing held on the fuselage so the spar hole lines up, the piece of wood will not fit flush with the front of the fuselage when placed on the LE of the wing. It's about half an inch forward. Not a problem but does this mean my wings are cut too big or something? I can just cut down the excess on the wood pieces, but I'd like to know why the massive misalignment is there.
I don't know the power of the laser exactly but it's a massive carbon dioxide laser. There's two thicknesses of wood and I think the thicker of the two is on the limit of what you can laser without starting a fire. I agree on the PVA vs CA, you need something that sets but gives a little flex to work with the wood rather than be completely brittle. PVA is about the best glue to work with, and POR on the wing join. All these kits need a good clean up after you separate the pieces, otherwise you get black fingerprints everywhere! Just in case you hadn't spotted, there a small piece that pops out of the middle of one of the box section pieces which looks like it's to be thrown away, but it's actually the tab that the hatch closes against.
The cheeks are guides which meet the leading edge of the wing and aide in aligning the wing leading edges on both sides of the box, you only need to ensure they fit flush to the leading edge of the wing and the bottom of the cheek meets the bottom of the fuselage box and you should expect them to come forward of the box section a little, then trim any remainder away afterwards. This is why the glueing of the cheeks to the box is something done only when you go to attach the wings so everything is flush.
Mine were out by about 5mm I recall.
Neil.
Thanks for the info. The box did go together nicely. I'm gonna get the last bits today so hopefully if no one interrupts me over the weekend then I should have it flying sometime next week. A benefit to working at a model shop is that I get all my modelling stuff at cost (including gopros!).
Gotta get the batteries too now. I've learned not to think about how much all the bits for a model cost lol, just get on with buying stuff until it's flying.
Ipeel the tab you mention for the hatch to rest on looks like it should go in a slot at the front of the box. However there's no slot on mine?!
Yes, I kept all the pieces. I tend to keep the ply frames so I can chop them up for odd jobs, too. And as with dp106, there is no slot on mine either. But that's not a problem as I plan on using a different attachment method for the front of the hatch (rod fixed into the front of the hatch that goes into a hole on the bulkhead).
I believe there's only a tab at the back now as the one at the front is redundant now everyone makes a hinge.
Ok cool, thanks
Made some progress today.
The fuselage is all glued together - just need to fill the gaps on the outside where the parts slot together (I'm pedantic in case you haven't noticed :) ) and sort the foam parts before paint.
Also made progress on the wings. For the servo mounting, I decided to use some of those plastic mounting plates. A bit pointless but they weigh barely anything and it looks a lot neater. The main reason is that it's all easily removable - most of my previous builds were done in a way that to get any gear out for whatever reason, I'd basically have to hack the whole thing apart. So this build will partially focus on all the gear being easily removable. I've cut the holes for the UHF Rx and the VTx also.
Here are some piccies
(http://i.imgur.com/RwHNAZHh.jpg)
(http://i.imgur.com/Yd4PUL4h.jpg)
(http://i.imgur.com/bhj1ouZh.jpg)
(http://i.imgur.com/rtt4ecoh.jpg)
Here's some detail on the wing fillet thingy:
(http://i.imgur.com/vOTdWRrh.jpg)
Oh and a tip in case it helps anyone. I've been marking out the holes with a fine permanent marker which is great but it leaves black lines everywhere - not ideal as I'm not painting the whole thing. It comes off easily with isopropyl alcohol and a toothbrush though, if that helps anyone.
Looking good.
I put masking tape down then draw on that.
Day off today, so some more progress made.
Last night I made the cables to go in the wings and installed them in the slots. I then cut some strips from the spare foam and used them to fill the slots.
(http://i.imgur.com/YVtjLBC.jpg)
(http://i.imgur.com/rPV5ZW2.jpg)
Some more progress today.
The colour scheme I'm going for is the one on my old Storm wing. http://www.fpvhub.com/index.php/topic,2272 (http://www.fpvhub.com/index.php/topic,2272)
I first filled in the gaps on the side of the fuselage (where the formers lock into), and fitted the cheek pieces with the wings dry fitted so that they're placed correctly. I then cut off the excess and sanded it flush.
I've started on the electronics also. I made a simple regulator on a heatsink, two regs actually, just LM317s. One has a 5V output and the other has a 11.5V output. 11.5V was chosen to give a little more headroom on the dropout voltage (though this is unlikely to be an issue), and also it's the closest voltage to 12V available with E12 resistors on the voltage setting. The only thing that actually needs 12V is the camera, but that's happy down to about 8V so no problems there. The other item that uses 12V is the VTx but that regulates it down to 5V on the board anyway. I cut a hole in the bottom of the foam fuselage floor and mounted the regs in there so that they get good airflow.
I've also laminated the fuselage floor and the hatch, it was super easy compared to usual balsa model covering. 120 C on my iron seems to work nicely. I also reinforced the velcro slots with some ply strips, they seem substantial enough but with a bit of wear and tear they might snap, so it's worth doing.
(http://i.imgur.com/NwxHN6F.jpg)
(http://i.imgur.com/770h69v.jpg)
(http://i.imgur.com/7cYgExp.jpg)
(http://i.imgur.com/J9tEF21.jpg)
(http://i.imgur.com/p5tbnVo.jpg)
The fuselage floor protrudes from the front a bit. It's just poorly cut. I would expect a little more care from Flyingwings, but for 70 quid I can't complain. It's not a problem at all anyway, but something worth pointing out.
(http://i.imgur.com/0p8QrlM.jpg)
Note, wings are just dry fitted. Next job will be to do the cutouts for the prop, then paint the wings, laminate them and install them.
(http://i.imgur.com/ZdbXfIo.jpg)
Got the wings painted. After doing some test pieces, I couldn't get any tape to mask off the EPP well. Not only does few types of tape stick well to EPP, but even when it does it doesn't seal it off very well.
The solution I found was to iron on thin strips of laminate for the masking. This worked perfectly and I just peeled them off when done.
I've got to wait a day or two for the paint to set fully before laminating the wings, but here it is dry fitted together.
(http://i.imgur.com/1NbrcOJ.jpg)
(http://i.imgur.com/NyOuMlN.jpg)
Looks smart. Nice idea with the laminate to mask off when painting.
Bit more done.
Got the wings laminated which went well. This is my first time laminating a wing and it was super easy - if you've ever covered a model with solarfilm etc... then laminate is a piece of piss.
I also made new elevons as I had some suitable TE stock. It was about double the required thickness though so half an hour with a plane and a power sander was required :) Now I need to do some hoovering... The end result is a lot stiffer than the originals and it fits the aerofoil much better. The blue was painted and the white was done with white Solartex as that's all I had. I then laminated them and they're tough as anything. I hinged them with laminate and installed the control horns. The quality of the fittings with this kit is superb - nice hefty pushrods, clevises and the control horns are those excellent Radioactive adjustable screw types.
I've also installed the FPV camera on a little mount, so it's easily removable.
I must say that this kit is excellent overall and is great value for money. The only issue I had is with the laser cutting which wasn't amazing, but not a problem if you have a knife and a pair of hands, even easier if you have a bandsaw. Aside from that (an extra 10 mins), the build has been really smooth with no problems whatsoever.
(http://i.imgur.com/K38gKhP.jpg)
(http://i.imgur.com/XslXWCC.jpg)
(http://i.imgur.com/8ZIriIP.jpg)
(http://i.imgur.com/eRJkw1b.jpg)
(http://i.imgur.com/2zHrnl9.jpg)
(http://i.imgur.com/8nmc29V.jpg)
(http://i.imgur.com/hH6UFyv.jpg)
Looks tidy. What's the black square underneath?
Those are my regulators, there's some more piccies of it earlier on.
Oh yeah, my bad! Do they get that hot then, or is it a case of over the top cooling is better than not enough cooling?
Looking Good Sheldon.
Is The Colour scheme designed so it blends in nicely with the sky and clouds?
Also Those linear regulators and heatsinks seem like a lot of unnecessary hassle and also waste a lot of precious sky juice... why not use switching regulators?
regards
Andy
I realised halfway through painting that "this looks awfully similar to the sky" hahahha. The contrast is good though, the blue areas just show up as black whilst flying. My old Storm wing had the same scheme and that was easy to see.
The linear regs are a temporary solution (botch). I've done a board with a couple of high frequency switchers on it, but not ordered the boards yet. It uses some TI high frequency switchers, I forget the part number. All that said, the inneficiency of the regs isn't really a worry compared to the current draw of the motor, which is huge by comparison. I'll see how much things actually draw and go from there.
Cool. How long till the maiden?
regards
Andy
It'll be next week sometime, Tuesday at the earliest, provided the weather plays ball.
Got the wings glued on now, done the control rods, installed the Rx, mounted the motor and ESC and started to install the electronics. Also reinforced the hatch a little as the rear end and the cutout for the middle former made it quite weak and flexible.
Wiring looks like a bit of a mess but it's all very carefully thought out. No chance of a ground loop in this thing :)
I'm also going to be playing with adding right thrust on the motor to help counteract the prop torque. I believe this is a reason for yaw wobble.
(http://i.imgur.com/KxeQFJD.jpg)
(http://i.imgur.com/HB8RcJe.jpg)
(http://i.imgur.com/z2qnCaI.jpg)
(http://i.imgur.com/Qdc7bTj.jpg)
(http://i.imgur.com/uWnxZtV.jpg)
(http://i.imgur.com/FHzBxb9.jpg)
(http://i.imgur.com/v6HBTBs.jpg)
Looks like a very clean build to me.
I would be interested to know the total build time when you're done too.
Looks neat. Interested to see about the motor mount for the yaw wobble. I'm not sure it will make much difference, they rock on the yaw axis because they don't have a tail. Adding a touch of nose weight helps reduce it a bit, but as soon as the air is turbulent it with wobble.
All finished bar installation of the VTx. Still waiting on my PCBs and some other bits so it'll be a couple of weeks before I'm actually doing FPV with it.
The prop on there is just for illustration, the actual prop will be a 10x7 APC to begin with.
Batteries are two 35C 3300mAh 4s Nano techs in parallel. As you can see, a 4500 nano tech fits in fine, so that's something for the future...
Now I just need to wait until the wind dies down a bit and I can fly it. Hopefully tomorrow but it looks even worse than today, with 43mph gusts in the morning :) If the forecast is right then Thursday might be the earliest I can fly.
Quote from: Brucey on June 01, 2015, 07:24:27 AM
Looks neat. Interested to see about the motor mount for the yaw wobble. I'm not sure it will make much difference, they rock on the yaw axis because they don't have a tail. Adding a touch of nose weight helps reduce it a bit, but as soon as the air is turbulent it with wobble.
Yeah, it might help a little bit but I don't hold much hope. From the looks of things these wings don't wobble massively anyway.
Quote from: Billy_boy_2010 on June 01, 2015, 02:13:00 AM
Looks like a very clean build to me.
I would be interested to know the total build time when you're done too.
Thanks. Well, it arrived last Wednesday, so I had wed evening, thurs evening, all day friday, all day saturday, all day sunday and all day today to work on it. Not been spending time solidly on it but had the whole day free kinda thing. You could comfortably get this done in a week of evenings.
(http://i.imgur.com/Ihg5EE0.jpg)
(http://i.imgur.com/fRQ8974.jpg)
(http://i.imgur.com/dm0EoET.jpg)
(http://i.imgur.com/G2h8ePu.jpg)
(http://i.imgur.com/ft5Pk3G.jpg)
(http://i.imgur.com/tSFT2so.jpg)
(http://i.imgur.com/YR5fHZo.jpg)
That's a great build, and an interesting motor / prop combination. You could end up with a very efficient setup.
What are people doing with the motor mount, drilling extra holes? Only providing two holes to mount the motor seems a bit risky.
I don't have a template to work out where they should be though so I'm doubtful I'd manage to get them in the right place
Quote from: dp106 on June 02, 2015, 05:46:46 PM
What are people doing with the motor mount, drilling extra holes? Only providing two holes to mount the motor seems a bit risky.
I don't have a template to work out where they should be though so I'm doubtful I'd manage to get them in the right place
I just used the 2 stock holes and used threadlock. I've had more flights than I care to count on my Venturi and the motor's on as tightly as the day I mounted it.
Ditto, minus the thread lock. Hope I haven't just jinxed myself!
Brave man not using thread lock ☺
Or stupid... One day I'll find out!
I guess it's more important on quads with more vibrations, that's when I learnt the hard way what happens if you don't use it :-[
Quote from: Brucey on June 02, 2015, 05:50:35 PM
Ditto, minus the thread lock.
I suppose it makes it easier parting the motor from the wreckage. :P
Ha yeah... so what's your excuse ;D
Yup, the two mounting holes (with threadlock) are just fine. The mount itself is sturdy as holy hell, no chance of bending that in a hurry. Well, hopefully not...
I just flew mine. Here's the wind from the Shoreham METAR: 22025G35KT - 25kts gusting 35kts, and my field is surrounded by trees. Made things exciting but I've flown in worse. I figured that if it can't handle a bit of wind then it's pretty useless :)
Flies very very well. Really stable given the conditions. The launch was done like this: https://www.youtube.com/watch?v=Ol4YCp72Rns (https://www.youtube.com/watch?v=Ol4YCp72Rns) On the 10x7 prop there isn't oodles of power but more than enough for me. I'll be playing with the props to get maximum efficiency. The weight of mine is 2.1KG all up minus gopro.
So yeah, flies nicely and nothing broken, so I'm pretty happy with that. Only thing that needs doing really is getting rid of the right thrust as it made if want to fly sideways aha. Also I need to cut some area of the wing off in front of the prop as there is about 1/4" clearance, which makes a hell of a racket and sounds like it's shaking itself to bits.
Nicely done! Glad the maiden went well.
Not sure about the launch though. Everybody knows this is the way to launch a wing:
http://bit.ly/1Qnfzcn (http://bit.ly/1Qnfzcn)
Good thing I did put my coffee down. That's too funny, not that I've ever done anything like that...
Just measured the battery voltages, after 7 or so minute flight and all the setting up. Down to 16.3V, actually 16.3089V because I have a 6 digit multimeter and too much time.
Quote from: iPeel on June 02, 2015, 09:19:22 PM
Nicely done! Glad the maiden went well.
Not sure about the launch though. Everybody knows this is the way to launch a wing:
http://bit.ly/1Qnfzcn (http://bit.ly/1Qnfzcn)
Laughed my head off when I first saw that video. Hoping they do Spockfest again this year it was a hoot last year.
Maiden into the sea, brave stuff! Glad it went well. I've got my motor on the outside of the mount to try and increase that gap.
Oh and 95mph into a goal post will bent the mount 8)
That's how I'm intending to mount mine to keep the noise down a bit. Dies it balance out alright? I've got 2 2200 4s to go in it which from the looks of it is less than most are using..
I've got 2x 3000 4s and I think it's slightly nose heavy. That's also with a go pro in its case.
You'll have to see, but don't be afraid of adding some ballast, it really doesn't mind the weight.
Cheers guys :D
I flipped the motor around so it's inwards as the CG was aft with the motor outwards. That's with 2x3300 4s packs.
I reckon I must have been a bit liberal with the paint - certainly my elevons are a little heavier than stock. Mine seems to be about 100g heavier than the standard so some weight has ended up somewhere :)
When I get a gopro for the front I should be able to flip the motor back round. For now I might just flip it back and use some lead in the front.
Yeah I'd just add the ballast. Having the motor hanging out the back is worth the small weight penalty. She won't mind... honest!
With the motor mounted on the rearward side of the mount and with trailing edge stock elevons mine balances up just right with 2X 3300 4S nanos in the middle of the battery bay. I've also got my servos mounted a little farther forward like yours appear.
I do just have an SK3 motor though so not a huge weight. I think my CG is at 190mm back from the wing leading edge.
Given how much material you had to cut off the wing guide cheeks it might be that your box section is a bit farther forward than mine, the spar hole is cut separately to the wing itself in a separate process. It makes to real difference to performance so long as you can get the beast balanced up.
Wouldn't it mean that the wings are further forward on the box, so the box is further back? That would explain why I've had to put the batteries right the way forward to balance.
Sorry, yes. I meant to say the wings are farther forward on the box section. This means that you need more weight farther forward in relation to mine.
OK, gotcha. If the wind is any better when I'm home from work then I'll try another flight. Just got a 11x5.5 to try also, so I'll see what's most efficient. This thing seems to have a pretty good cruise speed which is quite important for me - one of the main reasons I don't bother with slow flying bixler type things for FPV.
Just been flying it at my favourite flying site, 10 min walk up the hill from my house:
(http://i.imgur.com/LFzLl6E.jpg)
(http://i.imgur.com/hE7daR0.jpg)
(http://i.imgur.com/yq1t7XP.jpg)
(http://i.imgur.com/9K6WaSZ.jpg)
I wasn't expecting to fly today as on the way home from work it was still blowing a bloody gale outside, but after dinner it had miraculously all but gone. Got everything charged and went up the hill and flew for about 25 mins. The packs are down to 15.4V after this time.
I didn't get much chance to judge the flying characteristics yesterday as it was so bumpy that I had to keep the speed up for fear of stalling due to wind shear. This time it was much more enjoyable and it flew brilliantly. I stuck in 50g of nose weight to be sure, but it seemed a bit nose heavy so I removed it and it flew better. I remembered to put the stickers on so this probably is why it flies so well :)
It does feel quite heavy in the air, but it's really stable and it can be happily thrown about just like my little Bonsai wing. It has a good turn of speed also, not quite as fast as some of the ones here but that's not what I'm after. The efficiency is quite impressive. As a point of reference, this motor was originally used in my first Fun Cub which ran on 3S with a 13x6.5 prop. It cruised at about 1/3 throttle at about 20mph and weighed 1.3kg. This weighs 2.1kg, has the same motor on 4s with a 10x7. Cruising at 1/3 throttle, this thing flies at about 40mph, which is pretty good going.
Will still be week after next before I'm doing FPV, but I'm looking forward to it. This thing flies brilliantly and the kit is great quality.
Nice spot! Need to get on with building mine.
Awesome pics and great flying spot!
Not jealous of that spot at all;D
Glad your vent is flying well
If Carlsberg made FPV flying sites .......
Beautiful location :)
Great job :)
If I send you mine will you build it for me :laugh:
I actually would Jake but I don't have time right now.
Just flown again, seems my ESC is buggered. I flew up to a speck and went down vertically with the throttle closed and prop windmilling, it was windmilling at such high rpm that it seems to have buggered the ESC. Oh well, scope time...
Thanks,though I really should build it myself,think it`ll have to wait till the back end ,then I can retire the FX61.
Did you get it down OK?
Yep, came down fine. I only noticed it after landing oddly.
Just had a look at the speedo - some of the FETs are gone. When one FET starts to go, it puts more load on the others and you get a chain reaction. The ESC is a well used JP energ 60A one with modified opto signal input and new caps etc... Been working fine for a while but evidently a bit more grunt is needed for this thing on 4S. I'll see what I can find in the shop tomorrow, preferably 70 or 80A..
I did consider replacing all the FETs with better ones as it wouldn't cost much, but this ESC is one of those dual board things held together with a bunch of 2mm spaced headers, and I really can't be bothered with that :)
I use a JP 80A one on mine and it's been great, but I did replace the heatsink with a decent finned one. Even pulling 65A for short bursts put it in crawl home mode for a couple of minutes before but I can rag it all I want after the new heatsink was fitted.
Found a new one in the drawer. Yay! I've ordered some antennas from Simon, just gotta order the RF modules now and build a new ground station. *Just*...
My setup is only drawing about 40A at WOT, so the 60A one is fine. I think a FET blew up on mine before the first flight even, so probs haven't been getting full power.
Good call on the heatsink btw. I shall do the same on the new one.
Got some piccies of it in flight. Click on them for full size.
(http://i.imgur.com/JTI9mptl.jpg) (http://i.imgur.com/JTI9mpt.jpg)
(http://i.imgur.com/FZO0T32l.jpg) (http://i.imgur.com/FZO0T32.jpg)
(http://i.imgur.com/OBdsrISl.jpg) (http://i.imgur.com/OBdsrIS.jpg)
(http://i.imgur.com/uoMvRqNl.jpg) (http://i.imgur.com/uoMvRqN.jpg)
(http://i.imgur.com/mPXocxTl.jpg) (http://i.imgur.com/mPXocxT.jpg)
Can't wait to get the FPV gear sorted. Should be going by next weekend hopefully.
Well, I think I've found my next project! ;D
Excellent!!
Quote from: Soarer20 on June 16, 2015, 05:32:19 PM
Well, I think I've found my next project! ;D
Excellent!!
Hey Mark :)
Sent from my Nexus 5 using Tapatalk
So I'm getting close to finishing mine, are you guys using the cog as per the manual? If so are you measuring from the front of the centre section or the tip of the wing chord?
Sent from my Nexus 5 using Tapatalk
It's from the leading edge at the root. I started with about 185mm as in the manual but it has been flown from about 195-175.
Yeah think I'm at 190.
dp... dp.. who the hell is dp..!? Ah! Dave! :P
Be good to see this fly when you're done!
We'll have to meet up at Hackpen when you're done :)
Sent from my Nexus 5 using Tapatalk
What's this? A venturi owners club meet?
Well I know Marks near Swindon and I commute there so just a suggestion :)
An owners meet would be awesome though eh?
Sent from my Nexus 5 using Tapatalk
Whoa!! Let me actually buy the thing first! :laugh:
I could probably video your maiden from my F450 though
Quote from: dp106 on June 17, 2015, 06:56:12 PM
Well I know Marks near Swindon and I commute there so just a suggestion :)
An owners meet would be awesome though eh?
Sent from my Nexus 5 using Tapatalk
Yeah, would be cool, see how many we can have in formation
Owners meet would be good. I'm only 30 minutes from Swindon. Just need to get it built...
Well less typing on here and get building! :P
Only a couple of hours away from Swindon
Hopefully have mine ready to maiden this weekend
Sent from my Nexus 5 using Tapatalk
All I can say is wow :) Did a quick Los maiden then landed incorporated the trims and did a short fpv maiden.
I was lucky in that the wind dropped just before so that helped with the flight being so smooth but it talky flew well. So much power on tap, the first launch I had someone throw it for me. Second one I tried my self and I had trouble ketogenic hold of it, nearly flew out of my hand ::)
I flew with two 2200 4s right at the front of the battery bay, Xaomi Yi up front. COG was right on 190. Will do some more testing but might have to get some 3300's as I don't know how long the two 22"s will give me.
Couple questions, how are you guys keeping cameras in? I taped over it for this flight but need to come up with a better solution. Have you done anything to strengthen our protect the wing tips? I had to pick the grass out of them this time so not sure they'll last without doing something.
Oh yeah one last thing, really easy to land as well?! Thought it might be a bit of a pig but floated in for the landing really smooth. The smaller batteries might have helped there I suppose.
Sent from my Nexus 5 using Tapatalk
Excellent, glad you've got it nicely trimmed out and balanced. Those 2200's should get you 20-25 minutes of flight time if you're not razzing around too much, I use the 3300 nanos and the 4000 multistars, the nanos fit better in the bay, the multistars lift the hatch up a little.
I use a Yi too, and have glued a but of plywood into the base as I found there wasn't much floor area that the camera was sitting on, it's much more sturdy now. I also printed up a part which forms a hatch over the board cam and makes a back for the camera to sit against, I then just use a battery strap to hold the camera in place. Here's a picture with an SJ4000:
(http://www.peely.com/wp-content/uploads/2015/02/NewEvoGoProCover.png)
You can do the same thing with a bit of spare foam which will do just as well.
Neil.
Quote from: dp106 on June 19, 2015, 08:18:22 AM
All I can say is wow :) Did a quick Los maiden then landed incorporated the trims and did a short fpv maiden.
I was lucky in that the wind dropped just before so that helped with the flight being so smooth but it talky flew well. So much power on tap, the first launch I had someone throw it for me. Second one I tried my self and I had trouble ketogenic hold of it, nearly flew out of my hand ::)
I flew with two 2200 4s right at the front of the battery bay, Xaomi Yi up front. COG was right on 190. Will do some more testing but might have to get some 3300's as I don't know how long the two 22"s will give me.
Couple questions, how are you guys keeping cameras in? I taped over it for this flight but need to come up with a better solution. Have you done anything to strengthen our protect the wing tips? I had to pick the grass out of them this time so not sure they'll last without doing something.
Oh yeah one last thing, really easy to land as well?! Thought it might be a bit of a pig but floated in for the landing really smooth. The smaller batteries might have helped there I suppose.
Sent from my Nexus 5 using Tapatalk
Nice one, glad it went well. Bit daunting the first launch!
For the wing tips, I cut the head off of a cable tie and glued the remaining plastic strip to the underside of the tip.
Even with the larger batteries she will glide forever, sometimes it's handy, other times its a PITA as it just won't land and glides for ages in ground effect.
Venturi Motor Failure:
http://youtu.be/zgvQRvi11_c
That's pretty cool were you flying back in manual or 2D hold/ stabilise? Always find it a bit unnerving when gliding in case I let it get too slow and stall :-[
Sent from my Nexus 5 using Tapatalk
That was fully manual, from back in the day when I only had an ezOSD!
Yeah I had to make an effort to keep the nose down to maintain airspeed and not be tempted to pull the stick back to eek out the glide
Very impressive then 8)
Sent from my Nexus 5 using Tapatalk
Remembered to put the sd card in the camera this time so got some flight footage
https://youtu.be/GXVBW4gTStI (https://youtu.be/GXVBW4gTStI)
Good to see you getting low with it so soon. You defo clipped the tree!
Looks like a nice place to fly.
Thank god it kept going, could have been a short term ownership! :)
I love getting low with FPV, for me it's where the fun is at. Flying long distance get's boring quickly unless you keep finding somewhere new to go and look at.
I really want to try 1.3 for my video now so I can hopefully go further out while staying low. I managed 1.8km @ 120m before I bottled it. My RSSI was still showing 73% but the tx was beeping a lot to say it was losing packets.
Yeah low down is much more fun. Finding a high spot to launch from you can then fly at negative altitude quite far out, it's good fun!
Smashing the Fresnel:
http://youtu.be/uUo4RQlDuk4
Last time I checked, that spot was still there Brucey. ;)
Ah mate, I know! Getting withdraw symptoms! :(
I can make the visit child-friendly. :D
What are you using to get out that low? 1.3 + antenna tracking?
Looks good dp, I saw the picture of it on the FB page and it looks awesome in black.
I had my third FPV flight yesterday... and the final one too unfortunately.
I finally sorted my VTx so it had a full 100mW output. So time for a bit of distance. Got out to 1km and the thing locked out. Oh crap, set the Chainlink to high power mode and held the Tx up and got it back, so I turned around. I was about 1500ft at this point so I figured I may as well make the most of the flight and get some altitude. So I climbed up to about 2500ft at which point it locked out again. Because I'm a total retard, I hadn't set up failsafe. As such, the failsafe was full throttle and neutral elevons, the precise control inputs for a full throttle nose dive. Like, a perfect dive. From 2500ft all the way to the ground and I had perfect video all the way down...
The plus side is that I knew exactly where it was. The downside is that it's totally buggered. One lipo was totally crushed and the other caught fire. My beloved WDR700 was first crushed by the impact, then cooked by the fire... The other electronics seem just fine and the outer wing panels are OK at least. I can't afford to get a new one for a little while as this has been draining my income for the past few weeks (hey Rob, fancy giving me a new kit with the Xiaomi Yi mount for further crash testing? ;D) but I should be able to knock something else up to do FPV on. The side wall of the fuselage had to be pulled out of the ground with both hands.
Certainly my most impressive crash so far, ironically my new Xiaomi Yi arrived today so it missed the action, and I have no DVR at the moment so no crash footage :(
Click on pictures for full size (only phone camera pictures):
(http://i.imgur.com/YnBlEWxl.jpg) (http://i.imgur.com/YnBlEWx.jpg)
](http://i.imgur.com/2s9fneGl.jpg) (http://i.imgur.com/2s9fneG.jpg)
](http://i.imgur.com/VFg88kFl.jpg) (http://i.imgur.com/VFg88kF.jpg)
](http://i.imgur.com/sMWbE9Xl.jpg) (http://i.imgur.com/sMWbE9X.jpg)
(http://i.imgur.com/6S37diMl.jpg) (http://i.imgur.com/6S37diM.jpg)
(http://i.imgur.com/hZbrh5Gl.jpg) (http://i.imgur.com/hZbrh5G.jpg)
(http://i.imgur.com/lO4YnbJl.jpg) (http://i.imgur.com/lO4YnbJ.jpg)
I bent the motor mount at least :)
I retract what I said earlier about Chainlink Dare being fine, it's total crap it seems so I'll go over to openLRS when I can afford it.
Oh my. Sorry man, it's heartbreaking to see such a well built plane go like that.
Whilst it's probably possible to salvage the wings and get a new box from Rob, I'm sure you'll not be satisfied with the result.
Yeah, OpenLRS rocks and I'd definitely recommend the DTF-UHF.
Ow, thats a real pile up Sheldon, sorry m8....Were you using a Dipole on your RLink receiver?
:vulture:
Good effort!
Sheldon sorry for your loss. Just Be thankful it didn't go in on a building or road. I would have a look at Rlink UHF which is very solid and easy to program.
Sent from my iPhone using Tapatalk
Quote from: iPeel on June 20, 2015, 11:36:16 AM
Whilst it's probably possible to salvage the wings and get a new box from Rob, I'm sure you'll not be satisfied with the result.
This is something I considered. I could even just build a new centre section, plenty of ply here and the foam underside piece is intact somehow. Issue is that the port side wing is quite badly damaged and melted from the fire.
Now that I think about it more, that isn't such a bad idea... I just have to cut away the melted part and hotwire a new piece to go in there. Then I can remove the splintered spar and install a new one and do a new centre section. Will be a lot less work that building a new one.
Quote from: English Turbines on June 20, 2015, 11:37:25 AM
Ow, thats a real pile up Sheldon, sorry m8....Were you using a Dipole on your RLink receiver?
Nah, just the standard Chainlink Dare receiver antennas. It has a diversity receiver but obviously still doesn't work very well lol.
Quote from: Brucey on June 20, 2015, 11:45:28 AM
Good effort!
Thank you :)
Quote from: BigT on June 20, 2015, 11:57:37 AM
Sheldon sorry for your loss. Just Be thankful it didn't go in on a building or road.
Yeah, that could have been an issue. Luckily where I fly there is very little to hit, so it's not a huge issue.
Quote from: dp106 on June 20, 2015, 11:11:12 AM
What are you using to get out that low? 1.3 + antenna tracking?
I'm on 2.4 and ipeel is on 1.3
Do you need to use antenna trackers or can you get away without it? Really don't want a groundstation that's too complicated.
Sent from my Nexus 5 using Tapatalk
Brucey has a tracker of sorts, Chris! He gets on fine with a yagi on a fixed tripod and occasionally Chris nudges the antenna in the right direction.
At that site a tracker isn't that necessary as we're generally within a 90 degree field of view, I have one because a flight doesn't feel right unless I've been clonked on the head by my helical when the tracker gets a fix for the first time.
That site is truly great for low level flying and there's plenty of places to visit, here's one out to the windfarm again at pretty low level coming back:
! No longer available (http://www.youtube.com/watch?v=12Pfsr0fFy8#)
Sheldon I'm gutted for you, such a great build too :(
Must have made the earth shake!
Yeah as ipeel said I don't use one, I try and plan the flight, if I'm staying within 2km then I'll stay on omni's, if we have a target I'll stick the yagi on, but rarely have to move it. Remember the flyable 'cone' of gain gets larger the further away you are.
iPeel, once he's been smacked in the head by his helical, can fly wherever whenever.
Glad to hear you did it in style Sheldon :)
as I was in the area I thought I would inspect the crash site...
(http://media1.s-nbcnews.com/j/MSNBC/Components/Photo/_new/091026-meteor-hoax-hmed-8a.grid-6x2.jpg)
:laugh:
regards
Andy
Quote from: Brucey on June 20, 2015, 03:41:03 PM
iPeel, once he's been smacked in the head by his helical, can fly wherever whenever.
Shame it never knocks any sense into me.
Sent from a secure mental facility using Tapatalk
Yeah true, but then you wouldn't of come up with the twin ninja!
Quote from: skyscraper on June 20, 2015, 03:50:41 PM
Glad to hear you did it in style Sheldon :)
as I was in the area I thought I would inspect the crash site...
(http://media1.s-nbcnews.com/j/MSNBC/Components/Photo/_new/091026-meteor-hoax-hmed-8a.grid-6x2.jpg)
:laugh:
regards
Andy
Not far off lol... Glad I wasn't around when the lipo went up.
Currently looking at UHF systems. I've had my eye on the OrangeRx UHF system for a while as it's so darn cheap. I'd really like to get the DTF system or Rlink but the OrangeRx one is just so darn cheap... Unless there's any second hand deals around that is? I don't want to be spending much over £100 so my options are super limited, I know.
Note that I'd be fine with hacking the firmware on the Orange system which is necessary I hear as the firmware is a bit crap as standard with low servo resolution.
Personally I would save for the DTF, it's much better and you've just lost one plane to a second rate system. Multirotorsuperstore stock it and deliver to the UK in less than a week, their after sales support is exceptional. I think a TX and RX together can be delivered for close to your £100 budget.
Quote from: iPeel on June 20, 2015, 04:48:27 PM
Personally I would save for the DTF, it's much better. Multirotorsuperstore stock it and deliver to the UK in less than a week, their after sales support is exceptional. I think a TX and RX together can be delivered for close to your £100 budget.
Sent from a secure mental facility using Tapatalk
OK. I'll get the DTF system. I can't use the JR module in my 10C so I'd need the separate transmitter, but that's no problem. I'm just looking at receivers, what is the purpose of the "1 watt" receiver? I can't see any extra features over the standard MiniRx 8 channel one?
Quote from: Sheldon Holy on June 20, 2015, 04:56:27 PM
OK. I'll get the DTF system. I can't use the JR module in my 10C so I'd need the separate transmitter, but that's no problem. I'm just looking at receivers, what is the purpose of the "1 watt" receiver? I can't see any extra features over the standard MiniRx 8 channel one?
The 1 watt RX is a 1 watt TX instead of 100mw for telemetry, not required. One option for the RX is the Brotronics one which has a 1s lipo conditioner for powering the beacon on a battery out scenario, in future I'm buying those but I have not got one yet. I do know it has a decent filter.
Sent from a secure mental facility using Tapatalk
By the look of it, Sheldon won't need the beacon, he can just look for the mushroom cloud rising from the crater!
Quote from: iPeel on June 20, 2015, 05:00:20 PM
Quote from: Sheldon Holy on June 20, 2015, 04:56:27 PM
OK. I'll get the DTF system. I can't use the JR module in my 10C so I'd need the separate transmitter, but that's no problem. I'm just looking at receivers, what is the purpose of the "1 watt" receiver? I can't see any extra features over the standard MiniRx 8 channel one?
The 1 watt RX is a 1 watt TX instead of 100mw for telemetry, not required. One option for the RX is the Brotronics one which has a 1s lipo conditioner for powering the beacon on a battery out scenario, in future I'm buying those but I have not got one yet. I do know it has a decent filter.
Sent from a secure mental facility using Tapatalk
I see, so it uses the RFM-23BP instead of the RFM-22B for the receiver module, or at least that's what I'm assuming. Makes sense, though not required for me as you say.
I see the Brotronics one, the beacon is a good idea. Out of stock though at the moment. Is the beacon possible to do on any of the receivers in firmware? If so that's no problem as I could just use a 1S Lipo anyway and make a board to boost the voltage and charge the battery when it's not in use.
Currently I'm thinking of the 1W Tx, the 8 channel MiniRx receiver and the Diamond SRH-771 Tx antenna. I'd then make a suitable dipole for the receiver, I have the equipment to tune it properly too. How does that sound?
Quote from: Brucey on June 20, 2015, 05:04:57 PM
By the look of it, Sheldon won't need the beacon, he can just look for the mushroom cloud rising from the crater!
It was still smouldering when I found it. Bit of a shame, my first unintentional lipo fire and I wasn't even around to witness it :(
That reminds me, I must go and retrieve the remains of the lipos. I didn't bring them back as I had no suitable container but not the best idea to leave them there.
Quote from: Sheldon Holy on June 20, 2015, 05:09:26 PM
I see, so it uses the RFM-23BP instead of the RFM-22B for the receiver module, or at least that's what I'm assuming. Makes sense, though not required for me as you say.
I see the Brotronics one, the beacon is a good idea. Out of stock though at the moment. Is the beacon possible to do on any of the receivers in firmware? If so that's no problem as I could just use a 1S Lipo anyway and make a board to boost the voltage and charge the battery when it's not in use.
Currently I'm thinking of the 1W Tx, the 8 channel MiniRx receiver and the Diamond SRH-771 Tx antenna. I'd then make a suitable dipole for the receiver, I have the equipment to tune it properly too. How does that sound?
Yes they all support the beacon, just the Brotronics has the conditioner. As you say this can be retrofitted to any RX.
Your suggestion on the setup is exactly what I run, the diamond on the TX and a home made flexible dipole on the RX. Note I use the box version even though I have a radio with a jr module. I've ran the modules off both 2s and 3s with no change in performance.
Sent from a secure mental facility using Tapatalk
Great, thanks for the advice.
I'll put in an order for all the bits. Should have my Venturi 2 back in the air within a month if all goes well :)
Quote from: iPeel on June 20, 2015, 12:45:27 PM
Brucey has a tracker of sorts, Chris! He gets on fine with a yagi on a fixed tripod and occasionally Chris nudges the antenna in the right direction.
At that site a tracker isn't that necessary as we're generally within a 90 degree field of view, I have one because a flight doesn't feel right unless I've been clonked on the head by my helical when the tracker gets a fix for the first time.
That site is truly great for low level flying and there's plenty of places to visit, here's one out to the windfarm again at pretty low level coming back:
! No longer available (http://www.youtube.com/watch?v=12Pfsr0fFy8#)
Just been watching some of this.. If I'm reading your OSD right you're pulling nearly 20a for a lot of that and you mah used is just creeping up?? Pretty sure mine would be going up a lot quicker than that?!
So couple more questions if I may...
I seem to remember reading a post at one point about the thrust angle. It seems like it might be a bit off to me? I trimmed it out on the initial los maiden and all was fine. I've noticed now though if I try and glide it will drop the nose pretty rapidly. Anyone else experience this? Should I just trim it with less throttle on and accept its going to climb rapidly under throttle?
Other question... Why doesn't anyone go with a single battery? Sticking a larger single battery would mean less to recharge after a flight and cheaper for me to purchase.. :) About £75 for 4 x 3300 4s batteries but £50 for two 5000s or £60 for two 5800s
For batteries I use these, http://hobbyking.co.uk/hobbyking/store/uh_viewItem.asp?idProduct=31955 cheap as chips!
I know what you mean about the motor angle, I have the same thing, but haven't got round to changing it. I've just trimmed it for cruise with the thinking that the only time the motor will be off is when landing.
Wings will always climb as the speed builds because of the reflex they need. I've also thought about making a mix to add down elevator as the throttle increases, just not got round to doing either..... babies.... jeez!
My mount is bent back by just over a degree from 90 giving a slight downward thrust and I'm happy with it. My motor mount is on the top of the wooden plate whereas Brucey mounted his underneath to lower the thrust line a little.
The two batteries thing came from the old Venturi when you had to use two to get them in the thick part of the wing camber on each side. You could use a single battery if you want but I liked having a common set of batteries and the ability to draw a lot of current across two batteries rather than stress a single battery.
Quote from: dp106 on June 20, 2015, 11:16:32 PM
Just been watching some of this.. If I'm reading your OSD right you're pulling nearly 20a for a lot of that and you mah used is just creeping up?? Pretty sure mine would be going up a lot quicker than that?!
There was a surprising amount of wind that day and it was quite gusty so I've no idea what was going on, certainly I used more juice on that run than I recall doing on the same course previously with Brucey. The Mah consumed climb must tally with the current consumption as they are driven from the same data and in natterings with Brucey on long flights we're usually within a few hundred Mah of each other. He gives his batteries a little rub and a cup of cocoa when he gets back, mine don't get as good-a life.
Cheers guys, ordering some of those batteries now :) I might try and bend the motor mount back slightly. I was thinking about putting a mix in for some down elevator on the throttle but then that will probably mess up the Vector as it will interpret it as me putting input in.
Sent from my Nexus 5 using Tapatalk
If it's all assembled it ends up being easier to remove the mount from the bird and remove the motor then bend it properly, I've tried cutting corners and trying to do it all assembled with bad results!
Trouble is the foam is now glued underneath so not sure I can get the mount back off now :(
Sent from my Nexus 5 using Tapatalk
Quote from: dp106 on June 22, 2015, 10:05:20 AM
Trouble is the foam is now glued underneath so not sure I can get the mount back off now :(
You should be able to get one of the missus's best kitchen knives and tease it between the plate and the foam to get them apart. I've had the foam off the bottom of mine for maintenance a few times.
Cool think I better try that else I can see the plywood breaking rather than the mount bending.
Sent from my Nexus 5 using Tapatalk
Quote from: dp106 on June 22, 2015, 10:34:48 AM
Cool think I better try that else I can see the plywood breaking rather than the mount bending.
Sent from my Nexus 5 using Tapatalk
I beg to differ on that one :)
Also I personally prefer having the pitch change with throttle. Unless it's a pattern ship which this isn't.
In full size flying which is what I'm used to, one trims for an airspeed, and sets throttle for climb/descent. So you might trim for 150kts indicated and set 23 inches on the manifold pressure to maintain altitude.
I like my normal models set up this way, especially FPV ones. This is because I then get a good idea of how fast the aircraft is going just by feel. If there is no change in pitch all the way from max speed to stall then that makes things harder IMO.
Quote from: dp106 on June 22, 2015, 09:48:52 AM
I was thinking about putting a mix in for some down elevator on the throttle but then that will probably mess up the Vector as it will interpret it as me putting input in.
I was going to have the mix switched so it was only on when Ruby was in manual mode to avoid this very thing
Quote from: iPeel on June 22, 2015, 09:17:37 AM
He gives his batteries a little rub and a cup of cocoa when he gets back, mine don't get as good-a life.
Hey, those days are behind me now!
Got the foam off as far as the piece that comes up through the middle then it broke. Hey ho, won't look any different once glued back on. I've put holes through the foam where the screws are so hopefully I should be able to get to them without pulling the foam back off..
I've added two washers either side at the back to see if that helps. Looking at the mount it looks more likely to snap than bend. Or sods law says it will for me!
Sent from my Nexus 5 using Tapatalk
The mount is surprisingly soft. Mine bent quite easily to be honest.
Also a good point RE the screws. I cut holes so I could access the nuts after the foam was glued on, I'm surprised this wasn't mentioned in the manual to be honest. Although the manual is a little sparse...
Its not really a manual, more of a guide
It'll bend, it's just a matter of making sure the right bit bends! The thing will want to bend on the bottom of the mount if you're not careful.
I've made a 2 degree block using the table saw and I just hammer the mount against it to get it at the right angle and flat. Another option is to mount the base in the vice and prise the motor mount with a large screwdriver.
Went out the other night and it all nearly ended in disaster. First flight was fine. Second flight I tried to trim out the servos better by shortening the control arms. Once up in the air experienced two brown outs, the second of which resulted in an unscheduled heavy landing. I've ordered a 5a sbec to go in there which I'm hoping will solve the issue. But concerned now if the servos are both ok though ???
Sent from my Nexus 5 using Tapatalk
What servos are you using? I use a BEC now but originally ran the servos from the BEC on my JP energ pro ESC with no problems. That was with Hitec analogue servos though.
Hitec HS-82MG servos
Sent from my Nexus 5 using Tapatalk
Quote from: iPeel on June 22, 2015, 10:32:45 PM
It'll bend, it's just a matter of making sure the right bit bends! The thing will want to bend on the bottom of the mount if you're not careful.
I've made a 2 degree block using the table saw and I just hammer the mount against it to get it at the right angle and flat. Another option is to mount the base in the vice and prise the motor mount with a large screwdriver.
Seems like a lot o work.. and none too precise
How about shim washers TBH normal washers will be OK unless you are picky!
http://www.accuscrews.co.uk/shim-washers/62835-HSHN-3-6-0-1-A2.html?uk_google_shopping=1&gclid=CKvVq5Wvq8YCFfQZtAodmfYAoA (http://www.accuscrews.co.uk/shim-washers/62835-HSHN-3-6-0-1-A2.html?uk_google_shopping=1&gclid=CKvVq5Wvq8YCFfQZtAodmfYAoA)
regards
Andy
Quote from: skyscraper on June 25, 2015, 07:30:30 PM
Quote from: iPeel on June 22, 2015, 10:32:45 PM
It'll bend, it's just a matter of making sure the right bit bends! The thing will want to bend on the bottom of the mount if you're not careful.
I've made a 2 degree block using the table saw and I just hammer the mount against it to get it at the right angle and flat. Another option is to mount the base in the vice and prise the motor mount with a large screwdriver.
Seems like a lot o work.. and none too precise
How about shim washers TBH normal washers will be OK unless you are picky!
http://www.accuscrews.co.uk/shim-washers/62835-HSHN-3-6-0-1-A2.html?uk_google_shopping=1&gclid=CKvVq5Wvq8YCFfQZtAodmfYAoA (http://www.accuscrews.co.uk/shim-washers/62835-HSHN-3-6-0-1-A2.html?uk_google_shopping=1&gclid=CKvVq5Wvq8YCFfQZtAodmfYAoA)
regards
Andy
I've got two 'regular' washers under the back so far. Was testing it out then my other troubles started :(
Sent from my Nexus 5 using Tapatalk
i've got to say from my own experience of 3 evo builds, if it's balance correctly about cog, the thrust angle is pretty good imho.
Greetings from sunny Northumberland, I have just taken delivery of a Venturi FPV EVO after taking in much of everyone's thoughts, comments and experiences building and flying this wing. I have a couple of questions but first would like to draw attention to the following build video that as a newbie with laminated foam wings I found very informative. I'm happy to echo the thought that a similar video on youtube for Flying wings products would be welcome.
https://www.youtube.com/watch?v=KdVRE4XanZ8 (https://www.youtube.com/watch?v=KdVRE4XanZ8)
What paint is thought to be best for the ply centre section and elevons? – am I correct in assuming acrylic car spray paint works well?
Has anyone modified the front plate to take a Gopro camera in its case? Any experience and a photo would be good.
Cheers
There should have been an option at checkout to have the Gopro mount instead? There is a dedicated center section that is designed to fit the gopro properly, what one do you have?
I have the Gopro3 option, looks like it'll only take a "naked" camera.
Quote from: gr4ndp4 on July 01, 2015, 12:43:04 PM
I have the Gopro3 option, looks like it'll only take a "naked" camera.
Yes as far as the kit is concerned, although Brucey cleared that whole bay away and fitted his GoPro in the waterproof case with a board cam alongside. Structurally there's nothing stopping you doing that, although I think he butchered the GoPro case in order to fit it.
Edit: WRT your previous post, acrylic paint is the one you need, that won't harm the foam at all.
Many thanks for the advice. I'll try & post a build report in due course.
Cheers
Yeah I have a gp3 in and knock off gp3+ case from goodluckbuy. To make it fit I chopped the lugs off the bottom and the button on the side for the wifi.
(http://img.photobucket.com/albums/v432/BrunoV/20150701_172825.jpg) (http://smg.photobucket.com/user/BrunoV/media/20150701_172825.jpg.html)
@Brucey, do you have a link for that FPV camera please ?
Yeah its this one http://www.surveilzone.com/plastic-case-sony-super-had-ccd-650tvl-super-mini-camera-2.8mm-lens-hs1179
Hi, could anyone with one of these tell me what the internal width of the component bay is? I've had a look, but can't find any mention of it.
Thanks in advance!
Looks good, I have a 3 case (from an expired 3) into which the 3+ fits, hacksaw in hand.
Cheers
Quote from: karlak on July 01, 2015, 06:47:49 PM
@Brucey, do you have a link for that FPV camera please ?
Is there
anything you're not going to replace before the maiden Simon?
Quote from: ThunderstruK on July 01, 2015, 07:49:38 PM
Hi, could anyone with one of these tell me what the internal width of the component bay is? I've had a look, but can't find any mention of it.
Thanks in advance!
about 11.5 cm wide by 4.5 cm fore & aft.
Cheers
Quote from: ThunderstruK on July 01, 2015, 07:49:38 PM
Hi, could anyone with one of these tell me what the internal width of the component bay is? I've had a look, but can't find any mention of it.
Thanks in advance!
115mm
Awesome, thanks guys 😀
Just placed an order for one! Looking forward to getting started. Is anyone using one of these with a pixhawk?
Quote from: ThunderstruK on July 02, 2015, 04:42:34 PM
Just placed an order for one! Looking forward to getting started. Is anyone using one of these with a pixhawk?
Kind of... I'm running a pix' using the VTOL branch. Bags of room for the pix' and all its accompaniments.
Sent from a secure mental facility using Tapatalk
Quote from: iPeel on July 02, 2015, 04:51:40 PM
Quote from: ThunderstruK on July 02, 2015, 04:42:34 PM
Just placed an order for one! Looking forward to getting started. Is anyone using one of these with a pixhawk?
Kind of... I'm running a pix' using the VTOL branch. Bags of room for the pix' and all its accompaniments.
Sent from a secure mental facility using Tapatalk
Ah ok, so I'm guessing the rough pid settings are likely to be fairly different then I guess?
I'm hoping I have space, although I may need to do some mods as I'm planning to fit a downward facing camera to this. Things could get pretty tight I think!
I assume you're intending to run APM:Plane anyway, I run the PX4 Autopilot code.
APM:Plane's autotune is great though, use that and it'll get you as near as damn it to the best PID settings.
Yeah I'll have to give that a go I think. Should be interesting since it will be my first time trying it.
i've built 3 of these all using apm 2.6 arduplane with minimosd. i'll happily give you my pid's if you want. currently running 2x3300mah nanopuffs. 1250kv turnigy 3642 motor with 9x6 folding graupner cam prop. superb airframe, you'll love it.
Finally the weather's getting calm enough to stretch the capability of the Venturi. I reckon' she's got a few more KM in her...
https://www.youtube.com/watch?v=KJbmbr1Dmm8 (https://www.youtube.com/watch?v=KJbmbr1Dmm8)
Quote from: nowler on July 02, 2015, 09:40:55 PM
i've built 3 of these all using apm 2.6 arduplane with minimosd. i'll happily give you my pid's if you want. currently running 2x3300mah nanopuffs. 1250kv turnigy 3642 motor with 9x6 folding graupner cam prop. superb airframe, you'll love it.
Hi, Yeah that would be great if you could do that. I'd mainly like them to at least have it in the ball park, then I'll get it perfectly tuned for my setup.
Quote from: iPeel on July 03, 2015, 09:35:07 PM
Finally the weather's getting calm enough to stretch the capability of the Venturi. I reckon' she's got a few more KM in her...
! No longer available (http://www.youtube.com/watch?v=KJbmbr1Dmm8#)
Very nice, some lovely footage there. :)
You might want a cuppa.....
http://youtu.be/IGAXqY_JHLo (http://youtu.be/IGAXqY_JHLo)
New pb today 5km and only at 200m high :-)
Sent from my Nexus 5 using Tapatalk
First bit of footage from my flight Sunday. Got up early before the wind got too bad and the rain arrived.
Pleased with the results just need to sort the video now so I can get lower I think http://youtu.be/DHtE4N50DSE (http://youtu.be/DHtE4N50DSE)
Sent from my Nexus 5 using Tapatalk
You guys are killing me...
Lol sorry. Not managed to get yours fixed yet then
Sent from my Nexus 5 using Tapatalk
Nah, just gonna get a new kit. I'll have a go at making the wings removable - seems easy enough with minimal weight gain.
Quote from: Sheldon Holy on July 06, 2015, 09:20:17 PM
Nah, just gonna get a new kit. I'll have a go at making the wings removable - seems easy enough with minimal weight gain.
Will reserve judgement with interest...
Here's my plan:
Do away with the standard extruded spar. I'll then get a woven spar of the same diameter, along with another woven tube that has an inside diameter of the outside diameter of the spar. The hole inside the wing for the spar will be enlarged with a hotwire to accept the larger tube, so basically the larger tubes are used as sleeves for the spar to sit inside and act as a wing joiner. Then liteply wing caps will be made for the wing roots with alignment pegs. The wings will simply slide on to the spar and be affixed with screws. The woven carbon tubes are lighter and much stronger than extruded ones so it shouldn't add too much weight. The way Flyingwings uses a single straight tubular spar lends itself to this idea IMO, and I'm surprised they haven't looked into doing it themselves.
TBH it's not been considered because it's not been an issue and nobody's complained so why complicate things? The Venturi fits across the back seat of a VW Golf which is a good enough test in my book.
Adding additional spars and fitments complicates the build and increases the cost of the kits. When you start making the wings detachable you also have to make the wiring out to the devices on the wing detachable, which adds more layers of complication in itself.
The box section that the wings seal against is also a stress member, you will have to take that into account with the load calculations on the existing and probably add an additional spar a-la Z3.
I'm by no means trying to dissuade you here, I'd only do that if I thought your idea had no legs in it at all. You're a clever chap and if this feature's important to you I'm sure you'll engineer a good solution.
My build is going slowly (gardening) I notice the elevon horns on most photos are only about 25% out from the inner ends of the elevons. Is there a reason for this choice, I would have thought this might result in flutter or excessive torque at the outer ends. Would anyone like to comment!!
Cheers
Once the elevons are laminated they're really quite stiff. Additionally you should fix the control horns as close as possible to the hinge line, so there's very little flex along the length of the elevon.
Thanks for the advice, I understand the need for the horn fulcrum to be over the hinge (or as close as possible) and the benefit the elevon gets from the laminate. I will also ensure the control rod is perpendicular to the hinge line. Unless there is a particular reason to place the horn 10 cm from the inner end I'm tempted to place it closer to the centre of the control surface (the elevon is 52 cm long)
Cheers
I can't think of a reason other than keeping the weight of the servos closer to the centre. And on a bird like that it's not going any difference.
Good luck with the build
After further tour of wing pictures on google I see some have their horns closer to the end and very few towards the centre of the elevon, decided to go with the flow and used 11cm. The other advantage is the servo leads are long enough to reach the Rx position without an extension - the fewer connectors the better.
it looks cooler too. ;)
If you're worried about elevon flex then use some 9.5mm x 50mm T/E stock. I can give you a link if you need it. That said I haven't noticed any performance difference between the elevons supplied and T/E stock.
kit elevons are more than stiff enough if laminated. i've flown mine at over 100mph and the elevons are just find.
Started painting the wings of my venturi. On this occasion I thought I'd let my other half have some fun and do it.
Granted it won't be the easiest thing to see due to te colour scheme, but that shouldn't matter too much. If nothing else it's very different to anything else I have!
Cool, hard to do?
Well it's not hard but its time consuming. Hopefully will be worth it in the end.
Quote from: ThunderstruK on July 12, 2015, 04:30:50 PM
Well it's not hard but its time consuming. Hopefully will be worth it in the end.
Looks really cool! Nice to see something different.
Hi Guys.
Been following this thread with interest for a while and pleased to say I ordered a Venturi Evo today !
It will be a welcome replacement for the now dead Z2 which I really liked. I go away for a couple of weeks shortly, so probably won't get chance to get stuck into it until I return but will post my progress. :D
Cool, it's a great bird. Mines running the z2 power pack and goes really well.
Wind suddenly dropped last night and it was perfect for the Venturi. I wanted to put more of the flight up as it was so smooth flying above the fields. Thought better off it though as to anyone else it would probably just be a dull video of flying over field after field ::)https://youtu.be/ZhTrvTPa7WE (https://youtu.be/ZhTrvTPa7WE)
Sent from my Nexus 5 using Tapatalk
Looks like its flying nice, you must be happy. Good to see you getting low with it!
Staying up high and just cruising off somewhere isn't what this wing is about surely ::) I would have gone lower through the trees but having already crashed my mini into one earlier I didn't fancy having to do the walk of shame a second time.
My friend has an 8 turn helical I'm going to try to see if I can go further lower. If not I'm going to have to go 1.3
Sent from my Nexus 5 using Tapatalk
Yeah twice in one day isn't good.
The best thing for long low range is for you to get up high. You'll still need some sort of line of sight to maintain signal.
I'm still tempted to build a skywalker as a aerial relay station...
Haha so launch it and put it in loiter with a vrx receiving your remote signal then retransmit it down to you on the ground. Sounds like an interesting project ::)
You would struggle with it banking ask the time though and your antenna not being in the right orientation?
Sent from my Nexus 5 using Tapatalk
Yeah basically. I think you could mount the aerial at an angle to account for the bank while in loiter.
I dunno, just an idea I've had in my head for a while!
What about using a camera gimbal..?
Sent from my Nexus 5 using Tapatalk
Made some more progress today...took a long time though! Its all laminated now, and the camera slot is also cut. Next up is motor fitting and electronics...
Looking good. You having a camera pointing out the bottom?
Yes, I'm going to try it as my more compact mapping platform. Will be interested to see how it does!
Cool, always wanted to try mapping out
It's quite fun actually, although it can be a pain at times. It's not as hard as you may think!
Instead of filling this thread, fancy posting a how to?
An update and apologies for the delay in bringing this to you -
Build Log for Venturi EVO FPV
This is the first time I've used laser cut parts, what a mucky job it is cutting them out & sanding off the carbonised ply. On the fondly held principle that preparation is 90% of a build I dry fitted twice, sanded and rubbed with permagrit and needle files and then assembled and tacked with CY. I then completed the joints with Titebond wood glue (do not forget to remove excess glue before it dries with a wet cloth) – I agree with Sheldon on the use of CY tack and PVA for the bonding strength, the slow drying time for the PVA allows it to soak into the wood fibres before setting. I used acrylic car paint spray on the plywood, much sank into the wood but where I'd used the wood glue it did not – I suspect that giving the whole plywood carcass a thin coating of glue will make painting much easier and produce a smoother finish. Following Brucey's lead I've left off the front panel and Fore & Aft stiffener in the nose to install a cased Gopro I've installed a shelf and collision bulkhead to take my Gopro.
I followed iPeel's advice on laminating the wings leaving the forward part of the underside until after wing installation so I could get Por onto the full length of the spar. I've used a Prolux digital iron set at 115C(I tried 110C but it was not quite hot enough) remember start at the centre work outwards. Take your time and make sure the glue has melted before moving on to the next patch. This is more like "Pressing" than a swift smoothing action.
I secured the motor mount to the fuse with 4m bolts, nylock nuts and penny washers from model fixings.com. In anticipation of an urge to fiddle I have modified the bottom epp after end into a hinge secured by Velcro. The hinge strengthening tape was helped with spray on adhesive.
Hi Vis colouring is with solartrim (I'm not very comfortable with the fact that the winglet straps are in a large part stuck to solartrim (which is stuck to laminate which is stuck to the foam wing) Update -An unexpected encounter with the ground left the Venturi largely undamaged and the winglets creased but still attached
Elevon deflection is 1.5cm
Servos – HS325HB (same size as HS311 but with Karbonite gears)
Motor - Turnigy Aerodrive D3536/5 1450 Kv max 45 amp
ESC - Turnigy Plush 60A
Prop Initially tested 9 x 7.5 but this produced 600W at 45 amps on ¾ throttle so down sized to 9 x 6, this produced 650W at 50 amp so reduced to 8 x 4 to get 567W on 40 amps at full throttle (all on 4s)
https://youtu.be/cDqHWhUl4hg (https://youtu.be/cDqHWhUl4hg)
Has anyone come up with a better solution for the winglets? Mine are very shabby and bend a lot now. Was thinking plywood but that might be a bit heavy. Maybe depron but don't know how durable it would be.
Sent from my Nexus 5 using Tapatalk
Quote from: dp106 on September 06, 2015, 10:56:20 PM
Has anyone come up with a better solution for the winglets? Mine are very shabby and bend a lot now. Was thinking plywood but that might be a bit heavy. Maybe depron but don't know how durable it would be.
Mine are still fine. I sharpened the end of some 3mm carbon rod then drove it vertically through the middle of the correx to strengthen them, cutting the sharp point off one it had gone through the whole winglet. That keeps them nice and straight.
Mine are already looking a bit past repair. A rather hard landing shortly after its first flight didn't help
Sent from my Nexus 5 using Tapatalk
Yo,
Venturi EVO ply parts are now mainly routed instead of lasered, less black fingers, plywood is always sooty.
Rob
Fitted a Lemon Rx stabiliser, a work in progress.
https://youtu.be/M6BrqygdA34
Well that's as close to crashing as you can get! Nice save!!
Trying to see if I can make some replacement winglets. These are 6mm depron with a piece of carbon on the bottom and up through the middle
(http://images.tapatalk-cdn.com/15/09/16/72dbc051f900c6736db9f7f9fa04d241.jpg)
Sent from my Nexus 5 using Tapatalk
They look spot on, nice work!
hi . I would like to buy venturi wing and I just wondering is that 4s pack is good from flying wings and what is the best servo to use? thanks. and how many meters of laminating I need to buy? thanks
ipeel in youtube you say that flyingwings will have new delta wing? how long need to wait. I want a start build new frame. my skywalker is to slow for me.
and sorry is the motor mount coming with the frame or I need to buy separately?
Hi mate, I would email rob at flying wings, he'll sort you out.
Quote from: facedown on October 03, 2015, 04:38:23 PM
ipeel in youtube you say that flyingwings will have new delta wing? how long need to wait. I want a start build new frame. my skywalker is to slow for me.
The two that are in the pipeline at the moment are a very small wing ( a plank equivalent of a 250 ) and the Cloud Horizon that's designed for endurance and even slower than the Skywalker!
My assumption is you're looking for something more like the Venturi Evo that's fast and agile?
Quote from: iPeel on October 04, 2015, 09:36:59 AM
The two that are in the pipeline at the moment are a very small wing ( a plank equivalent of a 250 ) and the Cloud Horizon that's designed for endurance and even slower than the Skywalker!
My assumption is you're looking for something more like the Venturi Evo that's fast and agile?
looks like next Friday I will order Venturi Evo. Your setup is Turnigy SK3 1250Kv + Graupner 9x6 prop on Venturi?. what you think about OS OMA3820-1200kv outrunner motor and Graupner 9x6 prop. The power setup from http://www.flyingwings.co.uk (http://www.flyingwings.co.uk) comes with APC 8x6 Elec Thin propeller. What you think is better Turnigy SK3 1250Kv + Graupner 9x6 prop or OS OMA3820-1200kv + Graupner 9x6 prop. is your prop is and can you tell me wich servos you use? Hitec HS82MG Servo is good? Thanks
It's a good motor / ESC setup, same motor as used on the ZII and good for 100MPH. The SK3 1250 I used is nowhere near as good, I was disappointed with the punch but was impressed with the efficiency, for the next one will use either the O.S. or a Scorpion.
Prop-wise I'd go for an APC 9x6, they're efficient and strong.
For the servos I use Hitec HS645MG analogue servos as they're low noise and great quality. Whatever you end up going for make sure it's a standard size servo, the HS82 is a bit too small.
Quote from: iPeel on October 04, 2015, 03:14:57 PM
It's a good motor / ESC setup, same motor as used on the ZII and good for 100MPH. The SK3 1250 I used is nowhere near as good, I was disappointed with the punch but was impressed with the efficiency, for the next one will use either the O.S. or a Scorpion.
Prop-wise I'd go for an APC 9x6, they're efficient and strong.
For the servos I use Hitec HS645MG analogue servos as they're low noise and great quality. Whatever you end up going for make sure it's a standard size servo, the HS82 is a bit too small.
Do you know some good deal on Hitec HS645MG analogue servos? I don't want to buy china fake
Never had a problem with receiving fake servos, TBH I just buy from eBay.
I've never bought that many, they're strong enough that when I write off a plane I just cut the servos out of the dead plane and transplant into the new one. ;D
Quote from: iPeel on October 04, 2015, 05:42:07 PM
Never had a problem with receiving fake servos, TBH I just buy from eBay.
I've never bought that many, they're strong enough that when I write off a plane I just cut the servos out of the dead plane and transplant into the new one. ;D
Thanks. Wich fpv camera do you use. I always used before PZ0420H. is any better now ?
and one more question.how you get 12v from 4s for video? Do you take from mfd current sensor 12v output? Thanks
Quote from: facedown on October 04, 2015, 06:44:24 PM
and one more question.how you get 12v from 4s for video? Do you take from mfd current sensor 12v output? Thanks
The MFD doesn't provide a regulated 12v. You'll need a 12v regulator for the VTX if you're running a VTX that can't take <>12v.
The ones from Hobbyking are
really noisy so I don't recommend them, these MP1584's have proven very low noise when I tested them: http://www.ebay.co.uk/itm/MP1584-3A-DC-DC-Buck-Adjustable-Converter-Step-Down-Power-Supply-like-LM2596-/141613932563?hash=item20f8d92013[/url (http://www.ebay.co.uk/itm/MP1584-3A-DC-DC-Buck-Adjustable-Converter-Step-Down-Power-Supply-like-LM2596-/141613932563?hash=item20f8d92013%5B/url)
They're not exactly the listing I buy, I get them in bulk from China but the listing above is the same module.
Note you need to put them on a supply that's outputting > 12v and turn the little potentiometer until you get your desired voltage, I usually put a little blob of hot glue on the pot to stop it moving after setting it.
They are also very sensitive to heat from the soldering iron so take care. If you want to buy one already set to 12v and soldered up then these are exactly the same module: http://www.ebay.co.uk/itm/231625407590?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT (http://www.ebay.co.uk/itm/231625407590?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT)
Once you have the module you can either power the entire MFD / Camera / VTX from it by plugging this into the supply of the MFD or just power the VTX from it.
have you ever use this boar. I use this board for all my planes for 4s setup. http://www.stoneblueairlines.com/fpv-gear/linkboard/4s-128/4s-linkboard.html (http://www.stoneblueairlines.com/fpv-gear/linkboard/4s-128/4s-linkboard.html)
Looks good, but is about $19 more than I'd need to spend. :)
iPeel how you power your rx and servos from mfd autopilot.? and what camera for fpv you use? thanks
Quote from: facedown on October 06, 2015, 10:10:09 AM
iPeel how you power your rx and servos from mfd autopilot.? and what camera for fpv you use? thanks
From a BEC, the Turnigy 3A low RF BEC is great. The MFD won't power the 5v rail directly, it just passes it through from any pin to any other PIN. When you connect the ESC to the MFD only connect the PWM signal wire, not the ground or 5v, then use those pins not used to provide 5v and ground from the BEC.
Camera-wise I use a PZ0420. FlyingWings have some in stock so when you order everything give them a call.
Just order Venturi fpv with 4s power pack :) ;D
can you tell me the difference between this to motors
http://www.hobbyking.com/hobbyking/store/__80685__Turnigy_Aerodrive_SK3_3542_1250kv_Brushless_Outrunner_Motor.html (http://www.hobbyking.com/hobbyking/store/__80685__Turnigy_Aerodrive_SK3_3542_1250kv_Brushless_Outrunner_Motor.html)
and
http://www.hobbyking.com/hobbyking/store/__21286__Turnigy_Aerodrive_SK3_3542_1250kv_Brushless_Outrunner_Motor.html (http://www.hobbyking.com/hobbyking/store/__21286__Turnigy_Aerodrive_SK3_3542_1250kv_Brushless_Outrunner_Motor.html)
I need 2 of them for my other planes. But wich of them would be mo energy efficient?
Quote from: facedown on October 07, 2015, 02:36:35 AM
Just order Venturi fpv with 4s power pack :) ;D
can you tell me the difference between this to motors
http://www.hobbyking.com/hobbyking/store/__80685__Turnigy_Aerodrive_SK3_3542_1250kv_Brushless_Outrunner_Motor.html (http://www.hobbyking.com/hobbyking/store/__80685__Turnigy_Aerodrive_SK3_3542_1250kv_Brushless_Outrunner_Motor.html)
and
http://www.hobbyking.com/hobbyking/store/__21286__Turnigy_Aerodrive_SK3_3542_1250kv_Brushless_Outrunner_Motor.html (http://www.hobbyking.com/hobbyking/store/__21286__Turnigy_Aerodrive_SK3_3542_1250kv_Brushless_Outrunner_Motor.html)
I need 2 of them for my other planes. But wich of them would be mo energy efficient?
Great stuff, let us know how you're getting on with the Venturi build, always good to see a new build technique!
Hmm, two different SK3 3542's! They are different in construction so maybe a revision. If you look closely the 21286 housing hangs the other side of the motor mount from the prop whereas the 80685 hangs on the same side of the motor mount as the prop. Both shafts are theoretically moveable but this is a gamble with HobbyKing stuff and given their figures are usually made up I would base my purchase on whether you want the body of the motor to be on the same side of the mount as the propeller or on the other side of the mount from the propeller.
Is anyone running this with a folding prop? Thinking it might be nice for high speed dives.
Never fitted one though so not exactly sure what I need! (I've got the Zephyr 2 motor)
Of you want a high speed dive, keep the throttle on!
Hahaha. That's just a waste of mah's! :P
Sent from my Nexus 5 using Tapatalk
To answer your question though, I don't use a folder, less efficient and the potential for the prop to fold to far back and rip itself off put me off.
I've been running a fixed 8x4 prop on a Turnigy D3536/5 1450Kv, 60 amp plush esc & 4s batteries AUW 2Kg. Overhead hand launch is reliable at full revs and I've never had any problems with the fixed prop. I've had a few crashes but the wing has held up well, left wing needed reattaching where it had partially separated from the ply centre body. I have needed to replace the motor anchorage screws to the mount, they seem to have got stretched, the thread lock held but the motor was loose (worth checking) I'm still playing with the Lemon stabilised rx and I'm reasonably happy with it, it is certainly a more robust option to a gimbal though obviously not as smooth.
I have from flyingwings.co.uk 4s power pack and it has 60A esc. If i want to run 9×6 prop should i buy stronger esc?
No idea as I have a completely different motor but get yourself a watt meter. You can then test it on the bench yourself and see the max its likely to pull.
If it's an energPro then they can take a fair beating. I've moved one between three planes so far, all of which haven't led privileged lives.
It's worth fitting a heatsink though, prolonged full throttle behaviour tends to put them in crawl home mode as they get a little hot. Otherwise they're great ESCs. This guy sells various sizes of heatsink which work really well: http://www.ebay.co.uk/itm/Heat-sink-ESC-heatsink-various-sizes-inc-thermal-silica-tape-2-cable-ties-/141257268618?var=&hash=item20e396dd8a (http://www.ebay.co.uk/itm/Heat-sink-ESC-heatsink-various-sizes-inc-thermal-silica-tape-2-cable-ties-/141257268618?var=&hash=item20e396dd8a)
I cut the plastic away to reveal the existing heatsink surface and cable tie the new heatsink to it.
Done some painting. How is mfd autopilot gps? Can i use it in middle of the plane? How about interference? I need to waite 6weeks for my fly dream autopilot. It means if i need put gps end of wing tip my plane is frozen. Cant do any job.
looks great, in fact... reminds me of something... ;)
(http://dl.dropboxusercontent.com/u/8259957/FPV/Falcon%20EVO%20FPV/FE%2025.jpg)
Quote from: facedown on October 10, 2015, 06:12:26 PM
Done some painting. How is mfd autopilot gps? Can i use it in middle of the plane? How about interference? I need to waite 6weeks for my fly dream autopilot. It means if i need put gps end of wing tip my plane is frozen. Cant do any job.
Nice job, looks clean.
The MFD supplied GPSes are OK but i've never used one in close proximity to the fuselage, only really as I've had problems with GPS and other kit prior to MFD. If you'll be using a Mobius I'd look to put the GPS out on the wing, with a GoPro, Yi, SJ4000 etc you'll be OK inside the fuse.
Also, personally I'd have the motor mounted on the other side of the motor mount, it'll perform better that way round and the CG will balance up better.
You mean like this?
For a first time i will use isd cable to make cable from Dragonlink to MFD . The reason i like it is shielded. The positiv and negativ vire is more ..fat.. (sorry for my vocabulary) and signal and rssi is .. les fat.. :)
Quote from: facedown on October 11, 2015, 12:18:54 PM
You mean like this?
Yeas, that's it. I think Brucey runs that motor and has it mounted that way round too.
Having it that way will help reduce the noise a bit too
Sent from my Nexus 5 using Tapatalk
Similar motor, but defo have it hanging out the back
Wich battery better. Multistar green or turnigy nanopuff? Ipeel where you live?
I've used both Nanos (3300 4S) and Multistars (4000 4S). The nanos fit slightly better and give probably just as good range as the Multis. Brucey uses Zippy 3000's and flies just as long as I do on those.
I'm near Bedford.
What sort of spray paint is safe for the Vent?
Jake, you can use paint from Halfords, I used Matt Black plastic car spray on mine. I'm not so keen on the effect you get after laminating over the top, if I did it again I think I'd used some coloured laminate.
Sent from my Nexus 5 using Tapatalk
Cheers Dave ,I may just put some packing tape stripes on it and lam over the top.
If I ever get around to building it :+
Quote from: iPeel on October 12, 2015, 12:12:35 PM
I've used both Nanos (3300 4S) and Multistars (4000 4S). The nanos fit slightly better and give probably just as good range as the Multis. Brucey uses Zippy 3000's and flies just as long as I do on those.
I'm near Bedford.
Yeah I use these http://hobbyking.co.uk/hobbyking/store/uh_viewItem.asp?idProduct=31955
Cheap as chips
Quote from: Brucey on October 12, 2015, 02:11:24 PM
Yeah I use these http://hobbyking.co.uk/hobbyking/store/uh_viewItem.asp?idProduct=31955 (http://hobbyking.co.uk/hobbyking/store/uh_viewItem.asp?idProduct=31955)
Cheap as chips
How about zippy compact? The yellow ones. And the flight time how long usualy long you can stay in the air.
I've not tried the compacts. With my batteries I can manage about 30mins of cruise.
Quote from: Brucey on October 12, 2015, 03:27:48 PM
I've not tried the compacts. With my batteries I can manage about 30mins of cruise.
There's nothing compact about Brucey. :P
Hi I picked a 2nd hand venturi up over the weekend from the local model shop. It came without any manual has any one got a copy or at least info on the throws please.
Mark
My throws were 15mm low and 20mm high in each direction with about 30% expo, my CG is 190mm back from the leading wing edge.
Sorry but I don't have a manual.
Quote from: Jake Bullit on October 12, 2015, 01:41:45 PM
Cheers Dave ,I may just put some packing tape stripes on it and lam over the top.
If I ever get around to building it :+
Pull your finger out and get it done :D Much more exciting to fly than the FX61, I'm hoping to put 1.3 video in it so I can fly farther lower. No idea about 1.3 though!
Sent from my Nexus 5 using Tapatalk
Hi Guys,
Nearly finished my Venturi Evo, just a few bits to do. Am waiting for some vinyl to come, need to shove the airspeed sensor in and do a bit of tidying up.
I've run some of the wiring under the ply floor just to keep it a bit tidier. Hopefully I won't have to access it too often. I'm just hot gluing the bottom panel in place so I should be able to get it off again if needs be.
I'm using the fy41 from my now dead Z2 as well as the L9R rx , batts and servos too. Having spent so much on fpv over the last 2 or 3 years, I just wanted to put together a plane that wasn't very expensive. I've gone for an Aomway 600mw VtX which was around half the price of the immersion ones I've always used so I'll be interested to see how it does. Got the mobius from the Z2 and a new sony Effio cam.
Motor is an NTM 35-36 1800kv on 4S. I'll have to see how it all balances up to decide whether the motor is inboard or outboard.
Will keep you posted with a finished pic and hopefully a successful maiden, :D
Regards
Mark
Nice build.
One benefit of outboarding the NTM is you can use the prop adapters that screw to the can. I have two of those motors on another wing and the shafts sheared as soon as I gave it full throttle.
Hi Ipeel,
I hadn't even seen the prop adaptors that screw to the can. I'll check out that idea.
I have bust 2 shafts on the NTM motors but both through rough landings.
Thanks
Mark
If the 28mm can adapters fit the 26mm I have loads of them and could send you one if you want?
If you haven't got any "in stock" let me know and I'll check.
That's really nice of you to offer
I'll check how it balances out with the batts in place and all finished and let you know.
thanks again.
Mark
Just order mfd autopilot. Is it work with arduplane like apm? And can configure parameters in arduplane or in osd screen? IPEE can you send me your PID gains? And what els i should know. Any advice?
Quote from: facedown on October 23, 2015, 12:23:27 PM
Just order mfd autopilot. Is it work with arduplane like apm? And can configure parameters in arduplane or in osd screen? IPEE can you send me your PID gains? And what els i should know. Any advice?
It doesn't use APM code, it's proprietary firmware from MFD but it can take waypoints from mission planner, not config though. Everything is configured through the OSD with the joystick.
The default PIDs are better than taking anyone else's as servos, the position of the control horns and too many other variables make using someone else's PIDs not a good idea. Besides, my AP is not accessible at the moment:
(http://www.peely.com/wp-content/uploads/2015/09/IMG_0237.jpg)
Quote from: iPeel on October 23, 2015, 02:10:22 PM
It doesn't use APM code, it's proprietary firmware from MFD but it can take waypoints from mission planner, not config though. Everything is configured through the OSD with the joystick.
The default PIDs are better than taking anyone else's as servos, the position of the control horns and too many other variables make using someone else's PIDs not a good idea. Besides, my AP is not accessible at the moment:
(http://www.peely.com/wp-content/uploads/2015/09/IMG_0237.jpg)
Oops what happened and where's the video.. ;D
Sent from my Nexus 5 using Tapatalk
I think I ran out of talent! It went down at Mad Dogs, along with half of my fleet:
https://www.youtube.com/watch?v=_kGD7fa6aaY (https://www.youtube.com/watch?v=_kGD7fa6aaY)
I wonder if that's one downside of having the centre pods, the Venturi doesn't seem to handle unexpected landings as much as a solid foam wing?
Sent from my Nexus 5 using Tapatalk
I am on stage to glue fiber rod in to the wing. So i have question if you have crash and midle section need to be change. How you take out old rods to instal new. I would like to use gorilla white glue to make strong bond but that rod will stay for ever in that wing.
I went in at 60 MPH, pretty sure a foam wing wouldn't survive a front end impact like that.
Force = Mass x Acceleration or deceleration in this case.
FPV wings do suffer more than LOS wings as they tend to have higher wing loading, mainly due to the insane batteries we put in them and all the
other clobber.
All AP's should come with a G meter , would be interesting :-()
We can also provide all parts to our range , so the models are repairable.
Ipeel is the "Crash test Dummy" for Flyingwings
Cheers Rob
@facedown
I only tack my tubes in with UHU por, you only need a bead of glue then twist the tube to smear it around.
The force is up and down not lateral, ie the wing is unlikely to slide off.
Agreed it will be a pain to get the tube spar out of the wing, but not impossible like this, it won't come out cleanly, but that does not matter.
Hope that helps
Cheers rob
Flyingwings
Yup, dummy alright ;D
Quote from: foamster on October 23, 2015, 07:40:26 PM
@facedown
I only tack my tubes in with UHU por, you only need a bead of glue then twist the tube to smear it around.
The force is up and down not lateral, ie the wing is unlikely to slide off.
Agreed it will be a pain to get the tube spar out of the wing, but not impossible like this, it won't come out cleanly, but that does not matter.
Hope that helps
Cheers rob
Flyingwings
Thanks rob. Just glue first wing with uhu. I order mfd from you is it already on the way? Thanks :)
Quote from: Brucey on October 23, 2015, 07:41:32 PM
Yup, dummy alright ;D
(http://www.peely.com/wp-content/uploads/2014/06/TheBird.gif)
Ha!
Half venturi done
Am i bought wrong air speed sensor? It has only one tube.
http://www.fpvmodel.com/print_page_p433.html (http://www.fpvmodel.com/print_page_p433.html)
Do not worry about the second hose. It is for measuring static pressure outside a pressurized cabin. As our FPV planes are not pressurized it is not needed at all.
Note though an APM airspeed sensor will not work with a MFD AP and a MFD AP airspeed sensor will not work on an APM because their PCB are different.
Quote from: Coyote on October 24, 2015, 02:50:10 PM
Do not worry about the second hose. It is for measuring static pressure outside a pressurized cabin. As our FPV planes are not pressurized it is not needed at all.
Note though an APM airspeed sensor will not work with a MFD AP and a MFD AP airspeed sensor will not work on an APM because their PCB are different.
Thanks. In mfd home page sensor kas 4 wires but from fpvmodel.com has only 3 wires. Why need for 4 wires? Usaly use 4 wires to communicate both ways. But airspeed sensor just communicate one way? Thanks. Apm is analog but mfd digital? Somethink like that ?
Please help. I instal mfd to venturi and servo response to radio to different side. And roll for stable mode has to be reversed as well. How.?
In stabilise mode when you roll the plane left side down the left elevon should go down and right elevon should go up. When you point the nose down both elevons should go up. If one of those is true but not the other then you have the servos plugged in the wrong way round. if both are not true then servos need reversing in the AP setup screen.
Once you have the plane responding in stabilise mode go to manual and reverse your TX servo outputs so manual mode moves the servos correctly.
Thanks. . Now i need to calibrate and done. I prelode x6 from plane list. Is it write or use other ?
Yes, that's as good a place as any to start, then you can get the gains tuned in flight if you have a pot or slider set on channels 7 and 8.
Quote from: facedown on October 29, 2015, 10:22:32 PM
Thanks. . Now i need to calibrate and done. I prelode x6 from plane list. Is it write or use other ?
You could use X6 I guess, it is a similarly sized elevon type aircraft, but personally I wouldn't use a pre-set. I would start with a clean model. Go to plane settings --> plane type, and select WING
how you hold your yi camera secured to airplane?
Quote from: facedown on October 31, 2015, 05:23:15 PM
how you hold your yi camera secured to airplane?
I lost one from my falcon after doing inverted stuff as it was just shoved into the foam.
I now have a velcro strap holding it in.
Yep same here, I've got mine in the pretty tight but a Velcro strap as backup
Sent from my Nexus 5 using Tapatalk
can you send picture how it looks.
Finish
Inside
Modified esc.
Looking good!
The wing is 2.3kg. It is heavy?
I think mine came out at about 2 kg, but weight won't make much difference, just means it will land faster!
Where i got extra 300g?
Quote from: facedown on November 01, 2015, 02:21:12 PM
Where i got extra 300g?
Batteries or motor usually. But don't worry about it it will fly fine.
I am so scared to fly it. I have little experience flying delta wing. I bean flying most of a time gliders and specter v3. I know all is the same but i found fly delta wing is harder
Hi. Can i use these batterys for venturi. http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=64790 (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=64790) the size is good for battery bay and it is only 150g more then if i would use nano puff 3300-70c. But it would be 3800mah more
Quote from: facedown on November 12, 2015, 10:17:33 PM
Hi. Can i use these batterys for venturi. http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=64790 (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=64790) the size is good for battery bay and it is only 150g more then if i would use nano puff 3300-70c. But it would be 3800mah more
No, they are slightly too big. The 4000's work fine though.
Quote from: iPeel on November 13, 2015, 09:15:13 AM
No, they are slightly too big. The 4000's work fine though.
I'll double check, but I think I put two of these in my venturi for its maiden.
It's hard to see in this image, but if you zoom in you can see the two batteries. These are the 4s 5200 mah multistar.
Hmm, they don't fit in mine! I bought a couple a while back and tried to fit them with no luck. They fit just in the new Vent though.
Lol, strange! Maybe I missed out a part when building! I'll take a better photo once I'm home from work. As far as I remember they just fit side by side, with a little room to move then for or aft.
Does it fly alright with them in, they're a fair bit heavier than the batteries I use
Sent from my Nexus 5 using Tapatalk
Yeah flew great with them in. I actually needed the weight to make cg. Figured I'd rather have extra mah than dead weight. May depend on how you went power wise though, Mine was always going to be heavy because I want to use it for mapping, so I put a big motor on it. Still pretty efficient at about 9A cruise around 35 mph or so.
Here is a pic of my venturi with 2x 4s 5200 batteries.
Quote from: ThunderstruK on November 14, 2015, 10:49:59 AM
Here is a pic of my venturi with 2x 4s 5200 batteries.
Thank i order 4x them. Now is discount
Perfect fit 2x 4s 5200mah and center of gravity is right. Bit heavy 2.4kg will be flying brick. At least 10400mah :)
Looks neat and tidy,ready for the maiden?
Yes. Hopefully in Saturday or Sunday. I need to somebody will throw that brick. I found one pilot near me who will help me. I fate maiden flight. You can build plane for 2 mounts and then destroy it immediately.
Don't forget to film it!
Remember full throttle and a good throw, good luck!
The plane is unforgivable. In mayden flite i hade crash and fiber rod break.. there was no way that i could take the fiber rod out of wing and replaced. The venturi evo is in bin :(
Oh, how come it crashed? On launch?
Yes on lunch. :( what difference between venturi 2 and 3?
That was a lot of weight in it for a maiden
Sent from my Nexus 5 using Tapatalk
Did you film it so we can see what went wrong?
Yeah a maiden with 10000 mah was not a good idea.
The new vent has an extra spar towards the front and a bigger battery bay. Same wings.
Nex time when i will buid plane first flight will be just empty plane no fpv. And no extra camera. Just empty as light plane and teimit before add extra weight.
Well, my Venturi Evo is just about finished, having taken months of steadily putting it together. I think most folk could have done it in a week or two but I've been trying to fit the build in between work and running round after 3 young children .... I just never seem to get 5 minutes to myself. Most work on the plane seems to have been in the early hours of the morning !
Anyway, grumble, grumble, it's just about done. I've utilised as much gear as poss from my expired Z2 to cut down on cost and reign in what seems to be becoming an ever increasingly costly hobby. I see what you other guys on the hub are doing and trying and want to try them myself .... which means more money. I blame you all !
So this has my FY41ap , NTM 35-42 motor, a couple of 3300mah turnigy batts, and Frsky L9R rx and 2x mg standard servos from the Z2, a new aomway 600mw vtx, effio & mobius cams, turnigy sbec, rotorstar 60a esc.... & some bits of lego.
Doing a bit of recycling has made it a cheapish build, which was the reason for trying the Venturi instead of another Z2.
Anyway, fingers crossed for a maiden soon.
pics attached.....
Weight = 2.25Kg
I think I threw out the winglets by mistake or the kids have half inched them, so cut some more Z2 styly.
Looking good. Good luck with the maiden
Are you going to use your bungee ramp or hand launch it?
Nice one Mark, that looks amazing.
What are the main factors preventing the fabrication of a wing half that already has a blunt section? i.e. a flat curve at the front, as opposed to a point?
that way there would be no real need for the monkey blunt style structure on these types of wing.
I had an original monkey blunt on one of my many tek sumo wings, one crash and the centre section was rendered useless, also the wing halves are better glued to each other than a "third party" centre section.
without the centre section, these EPP wings are virtually indestructible, even without lamination.
for me, lamination works best when the wings halves are not only glued together but then the seam is laminated over... that's impossible to do with the centre sections in the Falcon and Venturi EVO wings... best you can hope for is laminate the individual wings and then glue them to the centre.
not trolling, just a genuine question... would it even be possible to wire cut EPP wing halves like that?
or what about an actual solid EPP centre section with the exact same airfoil cross section as the wing roots? you could glue EPP to EPP and laminate over the seams.
That looks great Mark, and a similar story to mine with family and work time constraints making for a slow build.
Finished mine last weekend, just got to find the time to fly now, and the weather of course.
Any launching tips, I usually throw my FX61 overhead with power on, the venturi is quite a bit heavier and not add easy to get a grip of.
Hi Blue
Really good question and I have thought the same myself.
Compare that to a wing- where without a centre section you cut into the foam which has the following disadvantages
1) spoils the airflow and lift over that centre section
2) weakens wing
3) fixed battery compartment size & CG issues
A centre section fixes the above.
I broke my Venturi on the maiden and have never got around to repairing it. It flew great but I lost orientatioj and down she went. Wings were fine- centre section knackered.
In truth I have been meaning to bond the two wings together and make a motor mount and try and fly it again. Would be a bit narrower but would fly great I suspect. Maybe I will get on and do it this winter.
Quote from: Drone 5 on November 23, 2015, 10:46:34 PM
Are you going to use your bungee ramp or hand launch it?
Hi Mike,
Hand launching is the preferred option . Once I'd twigged the requirement for positive reflex with the Z2 I had no probs with hand launching.... that is until that last fateful one that ended in a pile of foam and wires ! :( ( which you witnessed ;D )
If I have the Funjet with me there's no reason not to stick this on the ramp too though.
Your's is looking great too Jake. Glad I'm not the only plodder when it comes to building :D
Good luck with the maiden as well.
I think I'll be doing an over arm launch with full power similar to what Chris at Ritewing recommends with the Z2. I'm thinking of putting a recess in the bottom foam panel to hook a finger into to get some extra grip, maybe 3d print a little plastic insert for my finger to sit in so I'm not pulling the foam apart.
Quote from: MarkLloyd on November 24, 2015, 12:33:20 AM
Hi Mike,
Hand launching is the preferred option . Once I'd twigged the requirement for positive reflex with the Z2 I had no probs with hand launching....
I think I'll be doing an over arm launch with full power similar to what Chris at Ritewing recommends with the Z2.
Yeah that's how to do it. Grab the leading edge right up against the centre section.
A little reflex (up trim) is a must.
Here is a video of the maiden of my last Vent.... Think I over did the reflex.....
http://youtu.be/HE8eOjPe2Lo
I had someone chuck it for me for the maiden, better to have your fingers on the sticks ready.
Sent from my Nexus 5 using Tapatalk
How big is aileron movment and do you use any expo? Thanks. Now i will buy nex venturi until it will fly.
Hi I got one of these for when mines ready. Any one had one.
https://www.hobbyking.com/hobbyking/store/__45193__Pedal_Operated_Bungee_Launch_System_Ramp_for_FPV_Gliders_Light_EDF_Models_Self_Assembly_UK_Wareho.html (https://www.hobbyking.com/hobbyking/store/__45193__Pedal_Operated_Bungee_Launch_System_Ramp_for_FPV_Gliders_Light_EDF_Models_Self_Assembly_UK_Wareho.html)
Hi Mark,
Yes, I got one of the Hobbyking ramps after a 50% failure rate getting my funjet in the air. Once I had the ramp it became a 100% success rate :D
Of course it's more gear to take but if you leave some of the screws a bit loose, it folds up flat and opens out in a second and if you cut away a bit from the 90 degree joints on one side you can make the width adjustable for different sized planes. I think its a great bit of kit. ;D
After my encounter with a 12" carbon prop I made a bungee launcher from a few 3D printed parts and 21mm waste pipe from the DIY shop. It folds down really compact so I can carry it with all my other FPV kit in one trip to the field.
I also made a release mechanism using Arduino that counts down from 15 seconds before launching which lets you arm it then get back to your chair, get your tx in one hand, beer in the other and launch in style!
You can see the mech at the start of this video:
https://www.youtube.com/watch?v=_kGD7fa6aaY (https://www.youtube.com/watch?v=_kGD7fa6aaY)
Quote from: MarkLloyd on November 29, 2015, 08:41:30 PM
Hi Mark,
Yes, I got one of the Hobbyking ramps after a 50% failure rate getting my funjet in the air. Once I had the ramp it became a 100% success rate :D
Of course it's more gear to take but if you leave some of the screws a bit loose, it folds up flat and opens out in a second and if you cut away a bit from the 90 degree joints on one side you can make the width adjustable for different sized planes. I think its a great bit of kit. ;D
I like the adjustable slidey bit its a must do.
Great vid Neil! Enjoyed that :) My Falcon Evo is 99% complete so looking forward to my first experience of flying a 'wing' :D
Here are 2 Videos of our Venturi Evo's:
What with the bad weather, now is perfect to take my time on a build. Order placed :D
Can anyone recommend a decent 8x6 folding prop suitable for one of these?
Any reason for wanting a folding prop?
Quote from: Brucey on January 07, 2016, 06:43:10 PM
Any reason for wanting a folding prop?
Yeah :D I had a folding prop on my old wing Tensor V2.
Folding props look cool :D
Also just a hunch but they may be less vicious at slicing your fingers off when launching. When I diced my index finger, I had a non-folding prop. I think a folding prop might have done less damage... I will leave it to someone else to test that theory ... :laugh:
regards
Andy
Folding props are only good if your planning on gliding lots. There less efficient and will still chop your fingers off
oops posted this in the wrong thread I ordered the mk II.
As the above posted said it because I want to get some height and glide it. I love doing this with my Evo.
Well after months of no flying and procrastinating I finally finished off my venturi evo (V1) for its second maiden. (The first was with a pixhawk and went fine, but since then I 'borrowed' a few bits for other builds).
Typically I forgot to hit record on the mobius, but here is the DVR footage from my goggles. I've decided to fly without any fc for a change so there's no extra complexity!
Here is a pic of the venturi once it had landed. It was a pretty close call with these puddles!!
(http://i21.photobucket.com/albums/b287/ukbeast/20160113_134423_zps6kw6iwvm.jpg)
Nearly there.....