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Bréguet Br 905 Fauvette
The Bréguet Br 905 Fauvette ((英語:Warbler)) is a single seat, standard class, competition sailplane, designed and produced in France from the late 1950s. Some 50 were built but most remained grounded after a structural accident in 1969; a few remain airworthy.
==Design and development==
Following Bréguet's success in the 1954 and 1956 World Gliding Championships with the Type 901, Jean Cayla designed the Type 905 for the 1958 event. It is a Standard Class sailplane with a 15 m (49 ft 3in) span. Like its predecessor, the 905 is a cantilever mid-wing monoplane but the its structure contains glass reinforced plastic, more plastic foam and less fabric. It also has a butterfly tail. It has a wing of straight tapered plan, terminated with small "salmon" fairings at the squared-off wing tips. The major structural component is the main spar plus nose D-box unit, skinned with a plastic foam filled ("Klegecel") sandwich with 0.6 mm (0.024 in) ply outer layers. Ribs, ailerons and Schempp-Hirth airbrakes are attached to this torsion box. The whole upper wing surface and outboard lower surface is ply, supported by an internal Klegecell lining, with fabric below, aft of the spar. Slotted ailerons occupy the outer 45% of the trailing edge; there are no flaps. Each complete wing weighs just 34 kg (75 lb).
The Fauvettes's fuselage is built in three parts. The nose section, with a moulded plastic foam shell over a steel frame contains the cockpit, which is covered by a high, one piece canopy over the upright seating position, giving the Fauvette a somewhat hump backed look.. The centre section also has a steel frame, covered by moulded polystyrene; wings, cockpit and twin fuselage side towing hooks are attached to this frame. Behind the cockpit the upper fuselage line is formed with a polystyrene fairing which overlaps the conical rear fuselage, made of ply-foam sandwich. The V-tail is straight tapered with sweep on both edges. The fixed surfaces are ply-foam sandwich structures, carrying fabric covered control surfaces. The Fauvette has a fixed, monowheel undercarriage, assisted by a tail skid.〔
The Type 905 Fauvette flew for the first time on 15 April 1958.
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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