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The First Powered Vertical Take-Off MachineTechnologyOn December 4, 1907, Paul Cornu managed to get a steel framed machine powered by a 24 hp engine off the ground. The machine weighed 575 pounds (with pilot) and used two counter-rotating rotors. The machine had primitive rotor blades and lacked enough power for true free flight, but did manage to make it off the ground in a few tethered flights. Posted: 2003-10-11 9:50:30 PM This fact has been viewed 9736 times.
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