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Yakovlev Yak-23
The Yakovlev Yak-23 (in Russian Як-23, USAF/DoD reporting name "Type 28"), NATO reporting name "Flora"〔List of NATO reporting names for fighters〕 was a jet fighter developed in the USSR in the 1940s and used in the early 1950s.
==Design and development==
The Yak-23 was developed as a simple lightweight jet fighter, on Yakovlev's own initiative. It was a development of the earlier Yak-15 and Yak-17 fighters, retaining their non-conventional layout with a jet engine in the fuselage nose and exhaust under the cockpit, but the construction was all new. Its wings were derived from the Yak-19. The Yak-23 used a Soviet copy of the British Rolls-Royce Derwent V turbojet engine, produced as the Klimov RD-500. It first flew on July 8, 1947. After successful flights, it underwent state trials in 1948 and was accepted for series production. It was evaluated as highly maneuverable, with a good acceleration and take-off and climb capabilities thanks to high thrust-to-weight ratio. Faults were poor directional stability at speeds around Mach 0.86 and lack of cockpit pressurization. Despite being one of the best straight-wing jet fighters, it was inferior to new swept-wing designs.
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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