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Radioplane XKD4R : ウィキペディア英語版 | Radioplane XKD4R
The Radioplane XKD4R, known by the company designation RP-70, was an American target drone developed by the Radioplane Division of the Northrop Corporation. Although it was not produced in quantity, it was developed into the successful AQM-38. ==Design and development== The XKD4R was an air-launched target drone, powered by a single Aerojet solid-fuel rocket engine which exhausted through nozzles located at the trailing edges of the wing.〔"(New American Missiles )". ''Flight'', 8 February 1957. Volume 71, No. 2507. p.167.〕 Constructed largely of molded plastic,〔 it utilized an unconventional control configuration, consisting of three canard control fins located forwards, one on top of and one on either side of the fuselage, and fixed horizontal fins at the rear. An autopilot controlled the drone after launch; at the end of an approximately nine-minute flight, a parachute was deployed for recovery.〔Parsch 2003〕
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