4 ms·
Probably nowhere near this performance. Their motors instantly vary thrust by a factor of ten or more, this just can't be done at human scale.
by jojobas 4y ago
Probably nowhere near this performance. Their motors instantly vary thrust by a factor of ten or more, this just can't be done at human scale.
- namibj 4y agoDid you forget about adjustable pitch propellers? We have managed to use human-scale ones even to synthesize low-frequency audio by building a sealed room and putting a reverse-thrust-capable one on the only opening of that room (besides a closed door). It spins and the pitch is adjusted to modulate thrust in response to the sound signal. Those rotary woofers deliver supposedly good distortion up to their rotation frequency; 13 Hz / 800rpm seems common. For reference, a tail sitter propeller would probably spin faster than that, though even this is plenty to control the aircraft. A blade design using a servo flap easily keeps up with those control speeds, and could likely even offer thrust vectoring like the rotor of a helicopter (could eliminate the flaperons). The real enemy is power-to-weight ratio.