Although I'm still gathering information in the field of UAVs by programming the UAV Playground, I have now designed and built this Flying Wing as a future carrier for whatever electronics I'll be using. I've tried to design it as versatile as possible by using a platform where all the electronics is velcroed on (last picture). Like that it should be possible to carry around even bulky pieces of hardware.Specification- Kline-Fogleman KFm3 Airfoil (top steps at 50% and 75% chord)- Wingspan 1240mm- Wing area 24.8dm²- Weight 430g (330g without battery)Electronics- TURNIGY 28-26B 1350Kv motor- Master Airscrew 7x4 propeller- TURNIGY Plush 25A ESC- Rhino LiPo 3S1P 30C 1050 mAh- 2 x HXT900 1.6kg/cm servo
This is the camera mount and its removable nose cone.
The back view of the Flying Wing with the motor and the KFm3 Airfoil steps visible.
Here the canopy is removed and the electronics and an Arduino are visible.Free Design Tools [update]- ProgeCAD 2008 Smart (AutoCAD clone)- Google SketchUp (3D modeling)- WinLaengs4 (CG calculation)- Estimate Electric Motor and Prop ComboFirst Flights [update]The maiden flight was absolutely unproblematic. Only a few minor trim adjustments where necessary and I increased the travel adjust for elevator and aileron to 115%. I also mixed some elevator to the throttle so that the plane now stays level on throttle up. Elevon reflex is set to 3 degrees.The reactions to the stick movements where quiet precise and it always amazes me how stable my Wings fly. Flying a curve with elevons only was a pleasure and you wouldn't have noticed the absence of the rudder in non acrobatic flying.The KFm3 Airfoil is recommended for slow flying planes and although the maximum speed is rather low the flyable speed bandwidth is more than sufficient for a UAV ship.I tested different weight configurations from 450 to 590g and there is definitely more payload potential because even at full load with a 2200mAh lipo and the camera mounted vertical climbing was still possible.Flight time was about 25 minutes with a 2200mAh lipo (1680mAh recharged).
Aerial Video Central SwitzerlandA manual non stabilized flight in gusty winds. I used a Toshiba Camileo S10 1080p HD video camera weighing 119 grams and costing about 165$.For better quality and less jerking you can download the video from Vimeo (you need an account).A flight in the Swiss mountains [update]Filmed with the Toshiba Camileo S10 in WVGA mode (848x480, 60fps, no stabilization).
Great looking wing jaron, congrats on this construction ! I like also flying wings and just yesterday I've got a new one, my biggest so far: http://www.epp-versand.de/a_zelebanu.php - 185 cm wing span ! Is good for a lot of payload :-).
Can you elaborate on the design and build process? Did you use software and if so what kind. Any information about this process would be wonderful. Thanks.
Beautiful weather even here in Switzerland (!) and so I managed to test fly the Wing. See the [update] in the blog post.
Dave, the swept back wing and 3 degrees of elevon reflex give it enough stability. It's really unbelievable how stable that piece of foam flies (says a heli guy).
Noth666, until now I only used cheap wooden spars for my designs. In this case it's only 300mm for each wing half. The rigidity mainly comes from the foam layers of the Kline-Folgeman airfoil. Have a look at the PDF plan on my RC Groups blog for more details.
Dick, as soon as I got a camera that shoots decent video I'll post some footage.
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Jaron... you've done a superb job of designing this aircraft. I can't wait to hear the report on the maiden flight. It will be interesting to see how steady the plane holds the camera. Also, how it handles the weight. I'm very excited about this UAV.
Comments
Thanks Erwin.
Erwin
Beautiful weather even here in Switzerland (!) and so I managed to test fly the Wing. See the [update] in the blog post.
Dave, the swept back wing and 3 degrees of elevon reflex give it enough stability. It's really unbelievable how stable that piece of foam flies (says a heli guy).
Noth666, until now I only used cheap wooden spars for my designs. In this case it's only 300mm for each wing half. The rigidity mainly comes from the foam layers of the Kline-Folgeman airfoil. Have a look at the PDF plan on my RC Groups blog for more details.
Dick, as soon as I got a camera that shoots decent video I'll post some footage.
Is the wing twisted to give positive stablity ?
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