Hi, let me introduce my new FPV flying wing, the modded EasyWing.
The original EasyWing was designed by JAN-CHE in Hungary (link to JCP webshop), also he has been cutted all the EPP parts for me. Many thanks on his support!!!
So I decided to design a new center part, I started the design in 3D (as I use to do...). First I used vertical fins at the wing ends (like in original EasyWing), but later seemed to be a bit unstable in yaw direction. So I replaced them closer to the center line, and they are facing outward by 1-1 degree (like in the Funjet). To avoid high level of turbulence at the wing tips, I designed small winglets too. They are working great. Here is the final 3D model, before building. Quite similar, isn't it?
My goal was to build a small-enough plane for FPV purposes, and make it as efficient as it can be. All wooden parts are laser-cutted. To avoid damages at the wing front edge, I covered them with 80g glass-fiber sheet (used pvc vinyl for shiny surface finish):
Here is the complete parts list:
- APM 2.6 autopilot + airspeed sensor + battery monitor + MinimOSD + Crius CN-06 GPS
- FrSky TFR-4 FASST compatible receiver in PPM mode
- 720 TVL 30x30 panel camera
- 720p keychain camera (W/O housing)
- immersion 600mW 5.8 GHz video TX
- Turnigy TGY-113MG wing servos
- Hitec HS-5065 servo on camera moving
- 3DR 868 MHz telemetry module
- Turnigy SK3 2826 1240KV motor + Graupner 8x6 folding prop + 18A ESC
- 2200 mA 3S Turnigy A-SPEC
More technical datas:
- AUW: 860 g
- Wingspan: 1050 mm without winglets, 1170 mm with winglets
- Total flight time: 20-25 min
- most efficient: 45-50 km/h (4-5A total current)
- max. speed: 70km/h (limited by ArduPlane)
- stall speed: around 35 km/h
Here is a small test-flight video. (keychain camera's lens still needs to be fine adjusted, so the colors…)
Best regards
Adrian
ps.: Some more details:
Comments
Yes, the have toe-out.
Curved tips are made by hand with a knife… :)
Adrian, nice wing - clean and purposeful. I like the inboard verticals and wing tips. When you say the fins "are facing outward by 1-1 degree", do you mean they have toe-out? (the leading edge further apart than trailing edge of fins) How did you make the curved tips?
Oh, I forgot to write down, 1050 mm without winglets (the original EasyWing size), 1170 mm with winglets.
This looks really nice. What's the wingspan?
Good job.