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McDonnell Aircraft XH-20 Little Henry
McDonnell F-101 Voodoo St. Louis Test Flights
McDonnell Aircraft in the 1960s: F-4, Gemini
Engine Fire Destroys McDonnell XP-67
McDonnell Model 220 Business Jet
McDonnell Aircraft XP-67 B-roll
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McDonnell Aircraft FH-1 Phantom B-roll
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X-36 in St. Louis Factory
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McDonnell RF-101 Voodoo B-roll
McDonnell Aircraft XF-88 In Flight
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Gemini Capsule Assembly and Testing
McDonnell Aircraft XHJD-1 Whirlaway
During the 1940s, James McDonnell became interested in helicopters and formed a helicopter division within the McDonnell Aircraft Corp.
McDonnell Aircraft developed the world’s first twin-engine twin-rotor helicopter, the XHJD-1 Whirlaway, an experimental utility helicopter for the Navy antisubmarine and Coast Guard search-and-rescue operations, and capable of being put into production.
A notable feature of the Whirlaway was the use of two engines, one for each rotor. A complex transmission system was developed to enable one engine to power both rotors, as a precaution to engine failure.
Larger than any helicopter then in existence, and the first with two engines, the XHJD-1 was intended to be a testbed for study of the rotor aerodynamics.
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720px × 480px 11MB
flight test livery
full body views
historic production status
one of a kind aircraft
out of production
St. Louis Flight Ramp