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Various of Early Little Known Helicopters & VTOL Airplanes

T. A. Gardner

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For different and little known, there's this one:

1616994068755.png

That's the Marquardt M-14 "Whirlajet" (N4107K) with rotor tip ramjet propulsion flown in 1948. And it did fly..

1616994264283.png

Other variants in the US about the same time period with rotor tip ramjets or jet engines included the:

McDonnall XH-20 "Little Henry"
Hiller HJ-1/YH-32 "Hornet"
Hughes XH-17
American Helicopter XH-26

 

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