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The Hanson Elastic Articulated (EA) bearingless rotor grew out of work done in the early 1960s at Lockheed California by Thomas F. Hanson, who had previously worked at Convertawings on the quadrotor's rotor design and control system. [15] [16] The Gloster Crop Sprayer project of 1960 was an early example of a quadcopter drone. To be powered by ...
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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 ...
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 ...
The QTR study is one of five designs; one of the five is also a Boeing program, an advanced version of the CH-47 Chinook. [1] During the initial baseline design study, Bell's engineers were designing the wing, engine and rotor, while the Boeing team was designing the fuselage and internal systems. [9] A similar arrangement is used on the V-22.
MikroKopter produce various multi-rotor models such as QuadroKopter (a quadcopter), HexaKopter and OktoKopter.The design lends itself to computer control and robotics researchers at the University of Pennsylvania have developed a program to control swarms of what they term 'Nano Quadrotors'.
Ducted fan tail rotors have also been used in the Russian Kamov Ka-60 medium-lift helicopter, [17] and also on the Japanese military's Kawasaki OH-1 Ninja reconnaissance rotorcraft. French light helicopter manufacturer Hélicoptères Guimbal has also used a Fenestron for their Guimbal Cabri G2 , a compact reciprocating engine-powered rotorcraft ...
those that can design, certify and manufacture new designs from scratch and; those that can only manufacture extant designs under license. Boeing Vertol is an example of the first type and Kawasaki Heavy Industries, who license-produced Boeing Vertol designs for much of its recent history, is an example of the second.