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McDonnell Helicopter (1951) wind tunnel model

Apophenia

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From the University of Washington's Aeronautical Laboratory in Seattle.
http://www.uwal.org/multimedia/historical.htm

UWAL identifies this machine as the McDonnell "Lil Henry" (1951). But, it's pretty obvious that this was a wind tunnel model of the XV-1 convertiplane (first flight, July 1954).

The open-framed XH-20 'Little Henry' jet-tip helicopter had already flown in 1947.
 

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