- Apr 13, 2009
- Warren, VT USA
jay...what if you took two of the four props and put two of them in tractor at the wing tips for full time normal cruise, but the power level is tied to the joystick roll. now you have a roll control system that is effective at very low airspeed...lack of low speed roll control is the number one killer of pilots and lo demas, as i understand it. put the other two props wherever, for max thrust applications. it took a second look to see that i hijacked this thread from motorbikles to liteweight diesels. unless the bike was a series hybrid it wouldn't work for a bike, but it would work for a car(or better yet,an airplane). hence the hijack. the diesel thought is ideal in converting fuel weight into thrust, hence a lower gross weight aircraft at takeoff. also, spin the tip props counter to the rotation of the tip vortex and you reduce vortex drag for a higher apparent aspect ratio. a whole lotta stuff converging around this hybrid concept. daveed'
Blown tip vortex. You should run for a patent on that. I think you have something. Asymmetric thrust on the other hand and hanging on thrust at low speeds sounds like a guaranteed opportunity to be behind the power curve at all times when slow with the potential for thrust whiplashing of sorts.