FPV Zagi flying wing

Skyhigh123 · January 23, 2012, 12:10:56 AM

Started work on a Zagi flying wing this weekend. It was originally just a LOS model but started a conversion so i can build up some experience before building the Scout Bee.

Anyway here are some pictures:

As you can see, batteries in the wings as per TBS zephr. Decided to cut right through the wing section and make boxes for the LiPos to go in so i can quickly change batteries. Ignore the fact that they dont match, they will do once completed!

Camera mount for the GoPro - Also a TBS copy except made out of 6mm depron.

Specs:

Motor: Turnigy 2826 2200kv swinging a 7x4 APC prop
ESC: Turnigy Plush 40a
Servos: MG90s
Batteries: 2x Turnigy Nano-Tech 1300 3s

PLENTY more work to be done on it yet, will keep the post updated.

J :)

Coyote · January 23, 2012, 08:35:46 PM

Looking good Tim, i like the mount :) Whats happened with the foam behind the motor mount ?

Skyhigh123 · January 24, 2012, 01:29:00 AM

Thanks Coyote! Do you mean the square area behind the actual motor? If so that is where the prop will be swinging. It's a 7x4 so needs plenty of clearence. Decided to use correx board for the camera mount as I think think the depron will crush under the odd heavy landing :)

Made the cut outs for the vtx and the ezuhf today. On each wingtip of course. Pictures to follow :)

J :)

Coyote · January 24, 2012, 02:13:25 AM

No the bit infront of the motor, it looks like ou can see the floor through it

phibin · January 24, 2012, 07:51:33 AM

what did happen to that bit tim? lol

was it the old mount you made? maybe moving the motor from los possition to off set the fpv gear?

you could fill it in though? or does it improve air flow?? :laugh:

Skyhigh123 · January 24, 2012, 09:19:08 AM

Quote from: Coyote on January 24, 2012, 02:13:25 AM
No the bit infront of the motor, it looks like ou can see the floor through it

As Phibin says that's where the original motor mount was. Had no choice but to use a little brute force to get it out :/

The ESC and current sensor will be sat in that area anyway, so it's not a big issue, but I guess I can fill it if I need to :)

J

Coyote · January 24, 2012, 11:36:06 AM

Of right i see, yeah it`l keep the Esc nice and cool, hich is never a bad thing :)

skyscraper · January 24, 2012, 11:54:39 AM

Quote from: Skyhigh123 on January 23, 2012, 12:10:56 AM
Started work on a Zagi flying wing this weekend. It was originally just a LOS model but started a conversion so i can build up some experience before building the Scout Bee.

Tim :)

Very nice. ;D

What wingspan is it? (Always like to compare the power arrangements on others models so I can relate it to my next design :) )

regards
Andy Little

Skyhigh123 · January 24, 2012, 03:11:00 PM

Hi Andy,

Wingspan is 48" with approx 390W. Should go alright :)

J

marka1236 · January 24, 2012, 05:36:25 PM

looks good , i would have put the 2 battery,s closer to the nose in more in the center you will get faster turns ect

Skyhigh123 · January 24, 2012, 09:10:14 PM

Quote from: marka1236 on January 24, 2012, 05:36:25 PM
looks good , i would have put the 2 battery,s closer to the nose in more in the center you will get faster turns ect

Thanks! To be honest i didn't think about that, but it is a very good point. I will make sure i take it on board as this model is really only a practice for the Scout Bee.

J :)

Skyhigh123 · January 24, 2012, 11:52:57 PM

Got some more progress done this evening on the Zagi. Got pretty much all the wiring/components in but its at that stage where it jsut looks like a big mess! So needless to say the pictures are very flattering!

As you can see, VRX in one side EzUHF on the other, with the EzOSD in the middle. Had to switch to a bog standard HK speed controller as the Plush had timing issue on this motor.

NGhobbies vtx power suply fitted next to the EzOSD. The amount of wires was a bit of a mind blower to start with! Running a shielded USB cable to the wingtip for the vtx

EzUHF on the other wing tip, note to self, "dont put any spars in until last! Wires are a nightmare to negotiate around spars!"

Hope you like :)

J :)

phibin · January 25, 2012, 01:22:34 AM

looking good tim!

likeing the usb wire idea...

you got an AUW yet?

Skyhigh123 · January 25, 2012, 03:19:41 PM

Quote from: phibin on January 25, 2012, 01:22:34 AM
looking good J!

likeing the usb wire idea...

you got an AUW yet?

Had a quick weigh up this morning and it looks about 1080g ish. It needs tape on top of that. But hopefully it won't add too much weight. I bench tested the motor, i am getting about 1150g of thrust. So i aim to be lighter than that :)

J :)

phibin · January 25, 2012, 03:42:23 PM

should be good! :)

think mine is under 1kg...? would take a bit more ballast though i think...
wonder how heavy mine is now with all that crap taped on the top? lol

will have to weigh it.. lol