Comment on "Efficiency: Perfect pitch UAVs and airboats lead to new propellers (at least some good from UAVs / Drones)"
...restricted for the smaller hp engines used on UL. While it is...especially true for lower hp engines. I have seen some theor...could well be that higher hp engines maintain good efficiency up t...n point is that with lower hp engines maximizing prop efficiency is...Comment on "all my flying interest has been birdlike flight .so here is my question.with all the increases in performance in the triking world is there a point where we should just put a tail on it and attach the wing with ailerons .or should we keep the cost down and in the spirit of more the hang glider birdlike flight."
...totally agree foldable in the back seat of a car would be GREAT AND a reliable 4-stroke alternative to the overpriced Rotax engines !! So, BMW for example, could build engines easily, (or other motorcycle...