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Flettner Gigant : ウィキペディア英語版 | Flettner Gigant
The Flettner Gigant was an experimental helicopter built in Germany during the early 1930s. ==Design and development== Anton Flettner was an early rotary-wing pioneer in Germany, he developed a torqueless rotor by powering it with small engines fixed directly to the blades driving propellers. this arrangement drove the rotor without transmitting torque (other than bearing friction) to the fuselage.〔 A successful tethered flight was carried out in 1932, but the aircraft was destroyed soon afterwards when it overturned in a gale.〔
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「Flettner Gigant」の詳細全文を読む
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