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__NOTOC__ The Santos-Dumont ''Demoiselle'' ("Damselfly") was a series of aircraft built in France by Brazilian aviation pioneer Alberto Santos-Dumont. They were light-weight monoplanes with a wire-braced wing mounted above an open-framework fuselage built from bamboo. The pilot's seat was below the wing and between the main wheels of the undercarriage. The rear end of the boom carried a tailwheel and a cruciform tail. ==No. 19== The first aircraft of the type was the Santos-Dumont No. 19, which was built to attempt to win the ''Grand Prix d'Aviation offered for a one kilometre closed-circuit flight. Powered by a 15 kW (20 hp) air-cooled Dutheil & Chalmers flat-twin engine mounted on the leading edge of the wing, it had a wingspan of 5.1 m. (16 ft 9 in), was 8 m (26 ft 3 in) long and weighed only 56 kg (123 lb) including fuel. It had a pair of hexagonal rudders below the wing on either side of the pilot, a forward mounted hexagonal elevator in front of the pilot and a cruciform tail which pivoted on a universal joint to function both as elevator and rudder mounted at the end of a substantial single boom. There was no provision for lateral control. The undercarriage consisted of a pair of wheels in front of the pilot and a third behind, supplemented by a tailskid. Santos-Dumont made three flights on 17 November 1907 at Issy-les-Moulineaux. Later, Santos-Dumont made a number of modifications: he repositioned the engine, placing it below the wing in front of the pilot, fitted a different propeller and deleted the forward elevator and rudders. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Santos-Dumont Demoiselle」の詳細全文を読む スポンサード リンク
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