As a helicopter moves forward from a hover to a speed of about 15 kts., the power
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As a helicopter moves forward from a hover to a speed of about 15 kts., the power required is reduced because
a. the efficiency of the rotor is improved.
b. the helicopter is moving into a region of undisturbed air.
c. the tip vortices are left behind.
d. All of the above.
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Related Book For
Flight Theory And Aerodynamics
ISBN: 9781119772415
4th Edition
Authors: Joseph R. Badick; Brian A. Johnson
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