4 ms·
quadcopter aircraft scale up fine, for example the bell x-22 [0] research vehicle. 0. https://en.wikipedia.org/wiki/Bell_X-22 https://en.wikipedia.org/wiki/Bel
by grkvlt 6y ago
quadcopter aircraft scale up fine, for example the bell x-22 [0] research vehicle.
0. https://en.wikipedia.org/wiki/Bell_X-22 https://en.wikipedia.org/wiki/Bell_X-22