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Farman F.90
The Farman F.90 was a single engine biplane transport, carrying 6 passengers. It was built and developed in France in the early 1920s. Though it had some competition successes, it was not put into production
==Design and development==
The F.90 passenger transport appeared in 1921. It was a single engine, single bay biplane with unstaggered, rectangular wings and ailerons on the upper wings only. The interplane gap was large, with the upper plane held high above the fuselage by a set of four vertical centre section struts. The interplane struts were also simple parallel pairs. Its tailplane and elevators were fixed to the top of the fuselage; it had a triangular fin and a rudder with a tip at the same angle but vertically displaced, producing a nick in the leading edge.〔
The F.90 was initially powered by a 260 hp (194 kW) Salmson AZ 9 9-cylinder radial engine, neatly enclosed in a short nose. The fuselage was deep and flat sided, though with a slightly rounded decking. The passenger compartment, with four small windows on each side, began near the wing leading edge and stretched aft a little beyond the trailing edge. The pilot had an open cockpit behind the cabin with a clear forward view under the high wing. The F.90 had a conventional undercarriage with single mainwheels under the wing leading edges and a rear skid.〔
Flight trials began in 1921, conducted by Farman pilots Lucien Coupet and Jules Landry. By 1923 the Salmson radials had been updated from the mark AZ to CM for its appearance the Zenith Cup competition of that year. It was re-engined again, this time with 380 hp (283 kW) Bristol Jupiters, for the same competition in 1926. This change came with a new type number, F.91. Only one F.90/1 was built.〔
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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