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Sikorsky R-4B Hoverfly '346592' | by Hawkeye UK
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Sikorsky R-4B Hoverfly '346592'

The Sikorsky R-4 first flew in 1942 and was the worlds first mass produced helicopter. It was also the first helicopter in U.S.Army and RAF service. The R-4B was the first production version and 100 were built.

Full serial 43-46592.

c/n 136.

U.S. Army Aviation Museum.

Fort Rucker.

Alabama, USA.

17-4-2013

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Taken on April 17, 2013