Aerospace Engineering > GATE 2017 > Aerodynamics
Which one of the following statements is NOT true
A
The pitching moment of any airfoil at any angle of attack is always zero at the center of pressure
B
The pitching moment of any airfoil at any angle of attack is always zero at the aerodynamic center
C
The center of pressure and aerodynamic center coincide for a symmetric airfoil
D
The pitching moment about the aerodynamic center, for any airfoil, does not vary with angle of attack

Correct : b

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