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Yakovlev Yak-38
The Yakovlev Yak-38 ((ロシア語:Яковлев Як-38); NATO reporting name: "Forger") was Soviet Naval Aviation's only operational VTOL strike fighter aircraft, in addition to being its first operational carrier-based fixed-wing aircraft. It was developed specifically for and served almost exclusively on the Kiev-class aircraft carriers.
==Design and development==
Designed by the A.S. Yakovlev Design Bureau JSC, the first drawings showed a supersonic aircraft strongly resembling the Hawker P.1154 in study in the United Kingdom, but with two R27-300 engines. Supersonic performances would have implied many difficulties of development, and it was decided to initially develop a relatively simple aircraft limited to Mach 0.95. Although the Yak-38 and Yak-38M were developed from the land-based Yakovlev Yak-36, the aircraft had almost nothing in common.
The prototype VM-01 was finished on 14 April 1970. Though outwardly similar to the British Hawker Siddeley Harrier, it followed a completely different configuration. Together with a vectorable thrust engine in the rear used during flight, two smaller, and less powerful, engines were housed in the front portion of the fuselage and used purely for take-off and landing.〔The Harrier has only one engine, the thrust being vectored through nozzles fore and aft.〕 The aircraft used a similar layout to the German experimental VTOL strike fighter, the VFW VAK 191B, which began development in 1961, and the contemporary Dassault Mirage IIIV.
An advanced feature that Yak-38 possessed was an automatic ejection seat. When one of the take-off engines failed, once the aircraft rolled past 60 degrees the pilot was automatically ejected from the aircraft.
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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