Stanley Hiller
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Stanley Hiller Jr., was an American pioneering developer of the helicopter.
The Hiller XH-44 "Hiller-Copter".
Hiller XH-44
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The Hiller XH-44 Hiller-Copter is an American experimental helicopter designed by Stanley Hiller.
Stanley Hiller
…At the age of 15, he designed the world's first successful coaxial helicopter, and produced a working model. At 17, he presented his design for the XH-44 "Hiller-Copter" to the U.S. Army in Washington D.C., winning not only their approval, but also a draft deferment during World War II. Immediately…
XH-44 replica at the Hiller Aviation Museum.