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Post Info TOPIC: US Navy XHP (Experimental Helicopter - Patrol) competition


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Date: Jul 4, 2011
US Navy XHP (Experimental Helicopter - Patrol) competition
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According to Stephane:

In early 1950, the following companies submitted these designs to a Navy specification calling for an HP class (Patrol) helicopter with ASW (anti-submarine warfare) capability, a brand new mission for the helicopter at the time. None was selected in the end (source: Spangenberg Index, April 1950).

  • Curtiss-Wright P-592
  • Gyrodyne 9 Helidyne
  • Hughes 212
  • Kellett KH-9
  • McDonnell 73/A/B/C/D
  • Pennsylvania Aircraft Syndicate (designation unknown)
  • Piasecki PD-22B
  • Piasecki PH-26/A Convertaplane
  • Sikorsky XHPS/-(A)/-( B )/-(C)


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