[Re]Oszkar Asboth's helicopter 1928
TT | 2012-07-22 16:38:41
조회 4836 | 추천 0 | 다운로드 4
원시적이지만 탠덤로터
He continued his helicopter experiments at the Misura Bodywork Factory in Hungary. On September 9, 1928, he took off vertically with his helicopter powered by a 120 HP nine-cylinder engine and propelled by two wooden propellers, each 4.35 meter in diameter, placed parallel above each other and rotating in opposite direction. Tires were replaced by four footballs to provide sufficient flexibility for landing. During the first flight, after 1100 rotations the plane swiftly took off, at ten meters stopped, hovered for some ten minutes, remained absolutely stable around all axes, than smoothly descended.
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