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McDonnell XHJH Whirlaway : ウィキペディア英語版 | McDonnell XHJH Whirlaway
The McDonnell XHJH Whirlaway was a 1940s American experimental twin-rotor helicopter designed and built by McDonnell Aircraft for the United States Navy.〔〔 It was the first successful twin-engined, twin rotor helicopter in the world.〔 The Whirlaway was the largest helicopter flown up to that time.〔http://www.boeing.com/history/narrative/n028mcd.html〕 ==Design and development== In 1944, the United States Navy issued a requirement for a large rescue helicopter with capacity for ten occupants. The design was originally designated XHJD-1; shortly after flying it was re-designated the XHJH-1. The XHJH-1 first flew in August 1944, and had twin side-by-side rotors at the end of pylon wings which turned in opposite directions. Each rotor was powered by a Pratt & Whitney R-985 engine.〔
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「McDonnell XHJH Whirlaway」の詳細全文を読む
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