Bykov musclecopter


I. Bykov's man-powered helicopter design, submitted to the GIU (Chief Engineering Directorate of the Russian War Ministry) in 1897. It had a vertical rudder and an elevation rudder for control; it was necessary to tilt the rotor axle forward to achieve forward motion. The shape of the rotor allowed it to act as parachute as well. The project was rejected due to human-powered flying devices of this type having already been proven impossible to leave the ground.