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gyrodyne
gyrodyne (ˈdʒaɪrəʊˌdaɪn) n (Aeronautics) an aircraft that uses a powered rotor to take off and manoeuvre, but uses autorotation when cruisinggyrodyne
gyrodyneA rotorcraft whose rotors are normally engine-driven for takeoff, hovering, landing, and forward flight through part of its speed range. Its means of propulsion, consisting usually of conventional propellers, is independent of the rotor system. |