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My first go at fpv

Started by Charliewalker, February 18, 2013, 09:58:28 AM

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Charliewalker

Here's my first attempt at a fpv platform,I flew it yesterday & it went very well for about 2 min's when the motor although only running about 1/3 thottle decided to burn out,I think the reason's obvious if you look at the first pic,I moved the motor forward to help with C of G,( it's a 300mm long shaft with two extra bearings,one behind the prop & the other midway between motor & prop. Well, seemed like a good idea at the time! So it's up to the model shop for another motor a bit smaller than the 3536 that i'd used & try again! & no I havn't put the fpv gear onboard yet.       




Coyote

Cool looking plane Charlie, good luck with attempt number 2 :)
Education and schoolin is good, but FPV is gooder :)

Granpaw Jonah

Really nice looking 'plane. That't the sort of platform I wanted to fly really. i'm not a massive fan of my Raptor or the bixlers etc as far as looks go, but they do fly really sweetly. But yeah... all the best with that!
G'paw
'Scuse me while I kiss the sky........

Charliewalker

I'm not a fan of foam either & I love building thats why I built this one.but saying that here's a pic of one I built earlier when I was playing about with depron, 2300 span, I was thinking this morning wouldn't it be cool to have a camera in the cockpit of that one paning round to see two motors each side, 'em'..... maybe my next project!!   


Dizzy

Charliewalker  An interesting layout i take it the motor is there to keep the cog correct prob needs some cooling but alot of drag on that shaft too.

Looks like an exciting ride sorted when u fpv it ;D

dizzy
The sky is for byrds and fpvers

Easystar, Penquin, Spitfire, fun cub Zcub  Tonks Summit  
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electrotor

I'm never an advocate of adding weight to balance a model but there are times when it is the least bad option. This might be one of those occasions. However as Dizzy points out, cooling is needed. That in itself would cause some drag if you leave the motor where it is. I think the solution might be in the FPV gear though. If you mount at least some of it forward then you can reposition the motor aft again onto the outside of the aft fuselage bulkhead where the heat that builds up in it can dissipate naturally. Even if you don't want to install the FPV gear at this stage you could use dummy weights to simulate the installation. The when it comes to the actual installation you would not have to rebalance the model.
Natibus in luto, caput inter nubila.

Charliewalker

thanks for your thoughts on that,since my last post I've picked up a slightly smaller motor as the original must have been binding to burn out after a couple of min's plus it was only running 1/3 to 1/2 throttle, & I've changed the 3700 4s for 2 x 2200 3s, the 3s weigh a tad more & being pysically smaller I can push them further up the nose which sorts out the C of G. If the weathers ok tomorrow I'll try it out again.

Granpaw Jonah

Hey CharlieWalker.. some good advice there... they know what they're on about eh.  Nice Lanc... have a look at mine in 'Granpaws secrets in the hangers section. I would though get a few FPV flights under your belt before you decide to sacrifice your Lanc. I understand they are very tricky to fly with a terrible tendency to tip stall if you haven't enough airspeed on for a turn....all that weight on the wing....still haven't flown mine yet, ignore this post if I'm stating the obvious to you.
G'paw... ;D
'Scuse me while I kiss the sky........

Charliewalker

Hi Granpaw, thats a nice Lanc you got there,a proper one. mine was built out of Depron, weighed about      2 1/2 kg & flew on 4 of those cheap little red 2822 motors 4 for about £20. but it did fly well,maiden flight was the day they opened the bomber memorial in London.I flogged that one off on ebay....but...... I've got another one on the go with fpv in mind this time 2600mm, but i wanna get used to flying with the goggles on first,maybe we can get some formation flying in! anyone got a Spit & a Hurricane!!!   

Dizzy

Quote from: Charliewalker on February 18, 2013, 08:16:38 PM
Hi Granpaw, thats a nice Lanc you got there,a proper one. mine was built out of Depron, weighed about      2 1/2 kg & flew on 4 of those cheap little red 2822 motors 4 for about £20. but it did fly well,maiden flight was the day they opened the bomber memorial in London.I flogged that one off on ebay....but...... I've got another one on the go with fpv in mind this time 2600mm, but i wanna get used to flying with the goggles on first,maybe we can get some formation flying in! anyone got a Spit & a Hurricane!!!   
here she is my smaller spit the bigger one is still boxed awaiting its build later this year.

http://www.fpvhub.com/index.php/topic,6761.0.html

dizzy
The sky is for byrds and fpvers

Easystar, Penquin, Spitfire, fun cub Zcub  Tonks Summit  
Los slope

Charliewalker

OK Dizzy I give up where  have you hidden the camera!

Dizzy

#11
Quote from: Charliewalker on February 18, 2013, 10:06:10 PM
OK Dizzy I give up where  have you hidden the camera!
look in the canopy its a tiny 2gram job on a pan and tilt exactly where the pilots head would be  ;D

its the little black square you can see from the front view and from the side you can see the tilt mechanism
dizzy ;)
The sky is for byrds and fpvers

Easystar, Penquin, Spitfire, fun cub Zcub  Tonks Summit  
Los slope

Granpaw Jonah

That's fantastic Dizz....yeahhh, you know it is!! We need to meet up for a fly...what? somewhere half way?...I recon there's some good concrete at..Heathrow is it?.... I'll pack my van with a few planes, meet you down there!!...& you too Charliewalker!!  :D
GJ
'Scuse me while I kiss the sky........

Charliewalker

yeh, no probs,that'll be great.I've just come back from second test flight,......complete success, first flight   14 1/2 mins then landed to warm the pinkeys up 5 mins later up she went again for a further 12 1/2 mins
a total of 27 mins without a battery change! admitted it was only an endurance test. Well pleased.Now where's that vtx & camera.....

Dizzy

Quote from: Charliewalker on February 19, 2013, 01:30:29 PM
yeh, no probs,that'll be great.I've just come back from second test flight,......complete success, first flight   14 1/2 mins then landed to warm the pinkeys up 5 mins later up she went again for a further 12 1/2 mins
a total of 27 mins without a battery change! admitted it was only an endurance test. Well pleased.Now where's that vtx & camera.....
well done i love dedication in the face of cold weather lol

get the fpv kit on but take your time and you will love it :D

grandpaw do you realise how far down i live heathrow is about 310miles from me lol

dizzy :D
The sky is for byrds and fpvers

Easystar, Penquin, Spitfire, fun cub Zcub  Tonks Summit  
Los slope