专辑的 第四十四 照片走周围的"威塞克斯SAR"
照片画廊的 韦斯特兰威塞克斯特, The Westland Wessex is a British-built turbine-powered development of the Sikorsky H-34, it was developed and produced under license by Westland Aircraft (later Westland Helicopters). One of the main changes from Sikorsky’s H-34 was the replacement of the piston-engine powerplant with a turboshaft engine; the Wessex was the first helicopter in the world to be produced in large numbers that made use of a gas turbine propulsion system. Early models were powered by a single Napier Gazelle engine, later builds used a pair of de Havilland Gnome engines.
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