Sikorsky S-47 / R-4 / Hoverfly 1 [Photo ID: 5487]

Sikorsky R-4B Hoverfly   [ technical data ]
United States Army Air Forces (USAAF)
Registration: 43-46506
c/n: 43

National Museum of the United States Air Force, Dayton, Ohio / USA (Wright-Patterson AFB), USA, 2012-01-11

Photographer: Karsten Palt, flugzeuginfo.net, Germany
upload date: 2012-04-09

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