LOw speed UAV

Hi..Wanna ask something.. What kind of airfoil that is good for low speed UAV. I wanna design light UAV (not exceed than 150 gr) that bring a micro camera.THank you previously

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  • the mission will be done indoor, it will circle around the area with radius 10 m to see the object below.. so i think to make the surveillance accurate, it has to fly at low speed
  • With slow aircraft like you want, the airfoil does not matter too much. It all has to do with low reinolds numbers. A flat foam plate curved to have a 4% height at 40% of the chord gives good results, but you can leave it flat if you like too. 150 gram is a pretty tough weight limit to beat, even with normal rc planes. The extra 20~100 grams for the autopilot and camera will make things even more tight. That plane will probably not have the slow flying capabilities you are after. A small plane has relatively little surface area, and thus a high wingloading. A high wingloading means you have to fly fast to stay airborne...
  • I experimented with this a bit - you might want to consider a wire / carbon tube airframe with a synthetic sheet or fabric for the foil, as you can create a large lifting surface with very light weight materials. These are larger than what you have in mind - http://www.acesim.com/rc/ and http://www.acesim.com/rc/prime/ (I have one of these), but the design can be scaled down, and they carry significant loads in comparison to their weight at very low airspeed.
    R/C Electric Flight Projects
    Electric RC aircraft by Ace Sim RC
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