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Lavochkin La-17
The Lavochkin La-17 was the first Soviet unmanned aerial vehicle (UAV) to reach operational service. The first versions were developed in the early 1950s, and remained in service into the 1980s.
==Early development==
The La-17 was designed by the Lavochkin design bureau, with work beginning in 1950. Flight tests began in 1953, with prototype drones carried on a Tupolev Tu-4 four-engine bomber. La-17 production began in 1956.
The La-17 was a jet drone of all-metal construction, with straight flight surfaces, and a jet engine carried in a nacelle under the fuselage. The initial variant, which was just known as the "La-17", was air-launched. and powered by a Bondaryuk RD-900 ramjet with 800 kgf (1,760 lbf) thrust. There was a "windmill" type electric generator in the nose, somewhat along the lines of the WW II-era Luftwaffe's Me 163 manned rocket interceptor to provide electric power. The La-17 was directed by radio control and simply "bellied in" to land, with the engine taking the abuse of the touchdown. The ramjet was strictly expendable and easily replaced. The drone could carry Luneburg lenses to give an enhanced radar signature.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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