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  #252  
Old October 8th 07, 04:17 AM posted to rec.aviation.piloting
Mxsmanic
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Posts: 9,169
Default Backwash Causes Lift?

writes:

When in straight and level flight, the air flow through the rotor blades
of a gyrocopter is upward.


But the net movement of air is downward for the entire aircraft, which is why
it flies. The rotor acts as a large airfoil.