search:sikorsky r-4相關網頁資料
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![Sikorsky R-4 - Wikipedia, the free encyclopedia]()
en.wikipedia.orgThe Sikorsky R-4 was a two-place helicopter designed by Igor Sikorsky with a single, three-bladed main rotor and powered by a radial engine. The R-4 was the ...瀏覽：960 -
![Sikorsky R-4 helicopter - development history, photos, technical data]()
www.aviastar.orgThe Sikorsky R-4, or VS-316A, was a definitive development of Igor Sikorsky's successful pre-war VS-300, and in 1944 became the first helicopter in the world to ...瀏覽：384
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日期：2024-08-13
2009年7月18日 - 5 分鐘 - 上傳者：jaglavaksoldier
The Sikorsky R-4 was a two-place helicopter designed by Igor Sikorsky with a single, three ......
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日期：2024-08-11
2013年2月13日 - 10 分鐘 - 上傳者：Jeff Quitney
more at http://scitech.quickfound.net/ "Footage compiled together to give a brief overview of ......
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日期：2024-08-16
2009年3月1日 - 38 秒 - 上傳者：jaglavaksoldier
The Sikorsky R-4 was the world's first mass-produced helicopter and the United States Air ......
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日期：2024-08-12
12 Dec 2012 ... The Sikorsky S-47/VS-316A/R-4 model was the first production helicopter in the
world and based on the successful VS-300A helicopter....
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日期：2024-08-09
Il Sikorsky R-4, designazione dell'azienda VS-316, era un elicottero leggero
biposto prodotto dall'azienda statunitense Sikorsky Aircraft Corporation negli
anni ......
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日期：2024-08-11
Le Sikorsky R-4 est un hélicoptère construit par la société américaine Sikorsky
Aircraft Corporation. Il fut le premier hélicoptère à être utilisé par l'USAF....
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