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Question 1 of 10
Frg
easy
What is the primary aerodynamic difference between a gyroplane and a helicopter?
A
A gyroplane has a fixed rotor; a helicopter has a variable-pitch rotor
B
A gyroplane's rotor is unpowered (autorotates in forward flight); a helicopter's rotor is engine-driven
C
A gyroplane has a collective; a helicopter uses only cyclic controls
D
A gyroplane requires a tail rotor for anti-torque; a helicopter does not
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