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Short S.80
The Short S.80 was an early British floatplane built by Short Brothers for Frank McClean to undertake an aerial expedition up the Nile to investigate the cataracts between Aswan and Khartoum. After a successful flight to Khartoum it was returned to England, where it was used for training by the RNAS. When built it was the largest successful aircraft that had been constructed in Britain.〔Lewis 1962, p.461〕 It was also known as the Short Nile Pusher Biplane Seaplane.
==Development==
Realising that operation in the hot climate of Egypt would require an aircraft with a low wing-loading, McClean got Shorts to modify one of his Short S.27 biplanes by fitting it with extended wings. This proved underpowered, and Shorts therefore constructed a new aircraft for McClean, using a Gnome Double Lambda two-row rotary engine.〔Barnes 1967, pp.64–65〕
Of similar configuration to the modified S.27, the S.80 was an unequal-span three-bay pusher biplane, with a nacelle mounted on the lower wing to accommodate pilot and passengers in two pairs of side by side seats, with the engine behind them driving a pusher propeller. The nacelle was extended forward to carry a front mounted elevator mounted on upswept outriggers, and the empennage, consisting of a high-mounted tailplane and elevator with a pair of rudders mounted below, was carried on wire braced wooden booms behind the wings. A pair of rectangular section unstepped floats were mounted below the wing, supplemented by a pair of airbags mounted at the end of each lower tailboom.
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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