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July 12, 2013
1 min read
In 1980 the American Helicopter Society (AHS) put $250,000 on the line in their Igor I. Sikorsky prize, challenging mankind to create one, and only now, 33 years later, has someone finally claimed it.
The post After 33 years, a human-powered helicopter finally wins the Sikorsky Prize appeared first on Geek.com.
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