P-V Engineering Forum PV-2

P-V Engineering Forum PV-2
On April 11, 1943, Frank Piasecki became the second American to successfully fly a helicopter of his own design, the Piasecki-Venzie PV-2.
  • WEB12744-2013

  • Copyright/Owner: Smithsonian Institution
  • Source: National Air and Space Museum, Smithsonian Institution
  • Photographer: Dane Penland
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