Encyclopedia

Helicopter


helicopter - an aircraft heavier than air which is kept aloft primarily by the reaction of air with one or more rotors, rotated by a powerplant around axes located approximately in a vertical position;

Source: Order of the Ministry of Transport of Russia dated July 31, 2009 No. 128 (as amended on November 16, 2011) "On Approval of Federal Aviation Rules 'Preparation and Execution of Flights in Civil Aviation of the Russian Federation'" (Registered by the Russian Justice Ministry August 31, 2009 No. 14645)

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