Human-powered helicopter

Updated: Feb 28, 2013 20:02 IST

The team of undergraduate and graduate students hope to claim the $250,000 American Helicopter Society Sikorsky Prize, which has remained out of reach since it was first offered in 1980. (AP)
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The team of undergraduate and graduate students hope to claim the $250,000 American Helicopter Society Sikorsky Prize, which has remained out of reach since it was first offered in 1980. (AP)

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