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Dragonfly personal rocket copter

Put small rocket engines on the tips of a helicopter rotor, and you have the makings of Dragonfly DF1, a rocket-powered helicopter that might be for sale sometime this year. Although it reminds us of some of those early Fail videos of flying machines, rocket copters are supposed to be surprisingly easy to fly, with less vibration and improved stabi
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sharkbite
Uploaded 03/24/2010
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