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It was not a free flight, as four men were used to steady the structure. It was neither controllable nor steerable, but it was the first time that a rotary-wing device had lifted itself and a pilot into the air. [1] It later flew up to 1.52 m (4.99 ft) above the ground. The design was improved and the Gyroplane No.II appeared the following year ...
A quadcopter, also called quadrocopter, or quadrotor [1] is a type of helicopter or multicopter that has four rotors. [ 2 ] Although quadrotor helicopters and convertiplanes have long been flown experimentally, the configuration remained a curiosity until the arrival of the modern unmanned aerial vehicle or drone.
One rotor. Powered rotors require compensation for the torque reaction causing yaw, except in the case of tipjet drive. One rotor rotorcraft are typically called monocopters. Two rotors. These typically rotate in opposite directions cancelling the torque reaction so that no tail rotor or other yaw stabiliser is needed. These rotors can be laid ...
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B-8 Super Bug - similar to B-8M but with extra engine to spin up rotor before take-off B-8HD Super Gyro-Copter - development of Super Bug first flown in 1979 with hydraulic drive to pre-rotate rotor rather than separate engine; B-8V - B-8 powered by a Volkswagen air-cooled engine; B-8W Hydro-Glider - float-equipped B-8 intended to be towed ...
Other rotor concepts, such as slowed rotors, stopped rotors, folding rotors, and variable-diameter rotors, were investigated for subsequent designs, but Bell engineers Kenneth Wernicke and Bob Lichten deemed them unfeasible compared to experience with the XV-3 project. [1]
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The X-19 utilized specially designed radial lift propellers, rather than helicopter-like rotors, for vertical takeoff and augmenting the lift provided by the wing structures. [ 1 ] From the X-100 Curtiss-Wright developed the larger X-200, of which the United States Air Force ordered two prototypes designated the X-19A.