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Airspeed Envoy
The Airspeed AS.6 Envoy was a British light, twin-engined transport aircraft designed and built by Airspeed Ltd. in the 1930s at Portsmouth Aerodrome, Hampshire.
==Development and design==
The Envoy was designed by A. H. (Hessell) Tiltman as a twin-engined development of his earlier Courier.〔 It used the same wooden construction, outer wing panels and innovative retracting main undercarriage.〔
The Envoy was a twin-engined low-wing cabin monoplane of all-wood construction apart from fabric covered control surfaces. It had a rearward retracting main undercarriage with a fixed tailwheel. The aircraft was built in three series, the Series I was the initial production variant which did not have trailing-edge flaps, seventeen built. Thirteen Series II variants were built with split flaps and the Series III (19-built) was similar but had detailed improvements. Each series of the Envoy was sold with a choice of engines including the Wolseley Aries, Armstrong Siddeley Cheetah V or Armstrong Siddeley Lynx IVC radial engines. These different engines were housed under a variety of cowlings, mostly short chord Townend rings but also wider chord cowlings with and without blisters for cylinder heads.〔〔Taylor 1970, pp. 54–70.〕
The prototype, ''G-ACMT'', first flew on 26 June 1934 and in July 1934 appeared in public for the first time at an exhibition by the Society of British Aircraft Constructors (SBAC) at Hendon.〔 Small-scale production then began at the Portsmouth factory.
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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