Écureuil Et Péruche Sauvage Biodiversité Du Cimetière Parisien D'Ivry Sur Seine ERNOUF Guillaume
Eurocopter Écureuil may refer to one of three related helicopter designs, each of which was originally manufactured by Aérospatiale (later part of Eurocopter Group, now Airbus Helicopters). * Eurocopter AS350 Écureuil helicopter * Eurocopter AS355 Écureuil 2 The Eurocopter (now Airbus Helicopters) AS355 Écureuil 2 (or Twin Squirrel) is a twin-engine light utility helicopter developed and originally manufactured by Aérospatiale in France The Écureuil 2 was directly derived from the single-engined ... helicopter * Eurocopter EC130 Écureuil helicopter {{SIA ...
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Helicopter
A helicopter is a type of rotorcraft in which lift and thrust are supplied by horizontally spinning rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forward, backward and laterally. These attributes allow helicopters to be used in congested or isolated areas where fixed-wing aircraft and many forms of STOL (Short TakeOff and Landing) or STOVL (Short TakeOff and Vertical Landing) aircraft cannot perform without a runway. In 1942, the Sikorsky R-4 became the first helicopter to reach full-scale production.Munson 1968.Hirschberg, Michael J. and David K. Dailey"Sikorsky". ''US and Russian Helicopter Development in the 20th Century'', American Helicopter Society, International. 7 July 2000. Although most earlier designs used more than one main rotor, the configuration of a single main rotor accompanied by a vertical anti-torque tail rotor (i.e. unicopter, not to be confused with the single-blade monocopter) has become the most comm ...
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