XH-20 Little Henry (McDonnell 1947)
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The XH-20 Little Henry was the world's first ramjet helicopter. A flying test stand, it had no tail rotor and weighed only 280 pounds.
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XH-20 Little Henry (McDonnell 1947)
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The XH-20 Little Henry was the world's first ramjet helicopter. A flying test stand, it had no tail rotor and weighed only 280 pounds.
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