Most helicopter rotors have symmetrical airfoils because a. they produce more lift than cambered airfoils. b. they
Question:
Most helicopter rotors have symmetrical airfoils because
a. they produce more lift than cambered airfoils.
b. they can produce both upward and downward lift.
c. they do not develop pitching moments.
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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