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Jan 23, 2013, 03:14 PM
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chester2240's Avatar
Build Log

Bi-wing Flying wing


Ive heard people talk about a flying bi-wing but havnt seen one done so this is my attemp. I model it after the ace combat 3 X-49 night raven.
Im using:
Motor: hexTronic 5g 2000kv
Prop: GWS 5030
Lipo: Turnigy180mah 3s 17gr
Servo: Two hobbyking 2.2gr servos
ESC: Turnigy 6amp 3gr (stripped)
RX: FrSky 5ch 1.8gr
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Jan 23, 2013, 04:48 PM
You know nothing....
Stuart A's Avatar
Don't know if you're interested,but one of the earliest flying wings was a bi.Some info here.
https://www.rcgroups.com/forums/show...9#post23895461
Stuart
Jan 23, 2013, 08:20 PM
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Schoolya's Avatar
Subscribed. And a EDF would make this that much more awesome.
Jan 24, 2013, 02:29 AM
You know nothing....
Stuart A's Avatar
Quote:
Originally Posted by GoatZilla
The Dunne wing was described at the time as being "uncrashable"A bit of twist(washout) and plates between the tips.

Subscribed. And a EDF would make this that much more awesome.(quote)
Good idea!
Jan 24, 2013, 04:22 AM
Registered User
Just a couple examples of successful Bipe Flying Wings.

https://www.rcgroups.com/forums/show...8&postcount=99

https://www.rcgroups.com/forums/show...4&postcount=11
Jan 24, 2013, 11:19 AM
Registered User
chester2240's Avatar
Thanks for the links !
An EDF would be really cool and i have a 30mm im not using but for now this is just to see if this works. I would like to make a larger scale X-49 80mm edf since this is so easy to build.
Jan 24, 2013, 05:14 PM
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Schoolya's Avatar
If this works for you I think I will be cutting one from foam.
Jan 26, 2013, 05:39 PM
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chester2240's Avatar
I took it for its maiden today and it flew right out of my hands and up into a tree
Second try went much better i flew it for a few minutes getting a feel for what it can do and cant and its very stable and rolls super fast but it doesnt pitch up well i think that mostly due to it being nose heavy tommaro ill move the battery back and see what happens. If this plane last threw wedsday ill give it a paint job and a canopy i hate the lipo being ontop like it is
I'll try and get my brother to tape a video of it flying!


These are pics after the maiden and some repairs
Jan 27, 2013, 01:37 AM
You know nothing....
Stuart A's Avatar
Can you get the battery between the wings,I bet it will make a big difference to how it flys.
Try to stiffen up the control surfaces,a wire linkage between would be better.
Jan 27, 2013, 10:55 AM
Registered User
chester2240's Avatar
Its alittle to wide but it could i didnt know where the CG would be thats why its on the top but when or if i ever build another one i would put it between the wings.
I'll do carbon wire linkages next time this is working out pretty good the plane is so light 56gr with lipo the foam is holding up fine.
Jan 27, 2013, 11:26 AM
Detroit 2-stroke junkie
1320fastback's Avatar
Yes I know its out of this world but would be extremely cool to see.
This is also a Bi Wing.... of sorts.
Jan 27, 2013, 03:50 PM
Registered User
chester2240's Avatar
Lol what show is that from?

This plane is pretty triky to get flying but when it up its up and easy to fly. I think the best way to take off is full throttle and throw it up at a 60degrees.
Jan 27, 2013, 05:20 PM
Detroit 2-stroke junkie
1320fastback's Avatar
Put on your Geek Caps

Its a Romulan D'deridex Class warbird from Star Trek: The Next Generation.




Geek Caps off!
Jan 28, 2013, 10:45 PM
Registered User
slebetman's Avatar
Maybe it's a perspective thing but the gap between the wings looks a little too small. It should be slightly bigger than the chord of your wings. I'd increase it by about half an inch or so.


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