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McDonnell XH-20 "Little Henry" In Flight
Sponsored by the U.S. Army Air Forces/U.S. Air Force, the McDonnell XH-20 Little Henry proved that helicopters could fly using ramjets located in the tips of their rotor blades. The tip-driven rotor eliminated the need for a torque-compensating tail rotor. It did not need a transmission and was controlled with a rudder. The XH-20 was a low-cost research prototype employing open-frame, steel-tube construction. Little Henry was not a success because ramjets were too noisy and used too much fuel, so only two test models were built. One of the XH-20s is on display at the National Museum of the U.S. Air Force at Wright-Patterson Air Force Base, Ohio.
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Unique identifier
BI41758
Boeing ID
D4H(D4E)-11576-1
Type
Image
Size
7414px × 5873px 41MB
License type
RM
Keywords
1950s
copy space
day
exteriors
flying
full body views
ground to air
historic production status
hovering
left side views
military livery
one of a kind aircraft
research/experimental
rotorcraft
rotorcraft blades
small
sunshine
vintage / retro
Restrictions