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Gidroplan Che-22 Korvet : ウィキペディア英語版
Gidroplan Che-22 Korvet

The Gidroplan Che-22 Korvet ((英語:Corvette)) is a three-seat, parasol wing flying boat designed and built in Russia from the 1990s. It can have one or two engines and may be configured as an amphibian. At least eighty have been produced.
==Design and development==

The Korvet is one of several parasol wing light flying boat Boris Chernov designs of similar appearance, stemming immediately from the Che-20. The Che-22 Korvet made its first flight in 1993 and achieved certification in December 2001, with significant structural, control and instrumentation revisions made along the way. It proved successful, with 80 completed by January 2011. Since 1995 Chernov's designs have either been built by the Gidroplan (Hydroplane) Company or by Gidrosamolet.〔〔
The wing of the Korvet has no sweep and is of constant chord, with 1.5° dihedral; its thick airfoil section has a thickness to chord ratio of 0.15. It is a single spar, riveted duralumin covered structure, apart from its full span slotted flaperons, which are fabric covered, and GFRP sandwich, down turned, buoyant wing tips which support the wings when the aircraft is moored. Later aircraft have remodelled tips which include integral miniature float bodies to provide stability at speed on the water; they may also have separate flaps and ailerons. The wing is braced to the mid-fuselage by a single streamlined strut on each side, with the assistance of jury struts. Cabane struts carry the wing over the cabin. The tail unit is a GFRP structure with a straight edged, tapered, swept fin and balanced rudder which carries the unswept, straight edged tailplane, braced from above, a little above the upper fuselage line. The elevators are split by the rudder; the port surface has a trim tab.〔
Different variants of the Korvet have been fitted with several different engine types; some have a single engine and some are twins. In all cases the engines are mounted over and above the wing leading edge. Twins have their engines as close together as the propellers diameters will allow. Most engines have been from the Rotax range: the Rotax 503 UL-2V and the Rotax 582 UL two cylinder two strokes, the first air-cooled and the latter with mixed air and water cooling, and the Rotax 912 UL water-cooled flat four. The Jabiru 2200 has also been fitted.〔 Some drive two blade propellers, though others have three blades.〔
The Korvet's fuselage is a flat sided, two step hull design, built from GFRP. The cabin is completely enclosed in a blister canopy which is all transparent apart from the underwing roof, giving all round views. Entry is by upward canopy sections on each side. The flying boat can be equipped as an amphibian with short spring cantilever legs with small mainwheels, the legs rotating through 90° for water touch-downs. There is a small tailwheel below the rudder. Skis are another option.〔

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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