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autogiro |
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autogiroHeavier-than-air craft that supports itself in the air with a rotary wing, or rotor. The Spanish aviator Juan de la Cierva designed the first successful autogiro in 1923. The autogiro's rotor provides only lift and not propulsion; it has been superseded by the helicopter, in which the rotor provides both. The autogiro is propelled by an orthodox propeller. The three- or four-bladed rotor on an autogiro spins in a horizontal plane on top of the craft, and is not driven by the engine. The blades have an aerofoil cross section, as a plane's wings. When the autogiro moves forward, the rotor starts to rotate by itself, a state known as autorotation. When travelling fast enough, the rotor develops enough lift from its aerofoil blades to support the craft. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Since its inception twenty years ago, GBA has been involved in an extensive research program in the design, engineering, development, testing and marketing of gyroplane and gyrodyne aircraft. A Salt Lake City aviation company is using SolidWorks(R) 3D CAD and COSMOSWorks(R) analysis software to propel design of the gyroplane and the gyrodyne, driving what it calls "the third wave" of flight. Mayfield, vice president and chief operating officer of Groen Brothers Aviation, said, "With Federal Aviation Administration certification of the Hawk 4 gyroplane expected before the end of next year, and deliveries of the aircraft scheduled to begin shortly thereafter, Mr. |
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