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Gardan GY-120
The Gardan GY-120 was a single engine, parasol wing ultralight seating two in tandem, designed and built in France in the 1980s. It did not go into production.
==Design and development==
Design work on the GY-120, Yves Gardan's first ultralight, began in June 1982. The prototype was built that October and appeared, unflown, at the Paris Air Show of 1983. It flew for the first time on 27 April 1984.〔
The GY-120 had an aluminium alloy tube structure, stressed to FAR 23 standard. Its parasol wing was unswept and of constant chord, carrying half span ailerons. The wing was supported from below by a fore and aft pair of inverted V-form struts from the upper fuselage longerons to the its centreline. These struts also supported a longitudinal inverted V kingpost to which landing wires were attached. Flying wires braced the wing from below to the lower fuselage. The fuselage was flat sided, the fin and rudder straight edged. The leading edge of the fin was swept and the deep, almost rectangular rudder reached down between the elevators, mounted on the tailplane at the top of the fuselage, to the keel. Two seats in tandem were placed below the wing in a continuous open cockpit. The GY-120 had a fixed conventional undercarriage, with the mainwheels on half axles and radius arms mounted on the fuselage centreline and near vertical rubber compression legs fixed to the fuselage sides. The mainwheels had brakes and the tailwheel was coil sprung.〔
The only GY-120 built was powered by a 30 kW (40 hp) Hirth 270 two-cylinder inline, two-stroke engine, though it was designed to accept a variety of engines in the 26-45 kW (35-60 hp) range.
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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