The term 'angle of attack' is defined as the angle
A
between the wing chord line and the relative wind.✓ Correct Answer
B
between the airplane's climb angle and the horizon.
C
formed by the longitudinal axis of the airplane and the chord line of the wing.
Explanation
PHAK defines angle of attack as the acute angle between the chord line of the wing and the direction of the relative wind. The angle between the flight path and the horizon is the climb angle, and the angle between the chord line and the longitudinal axis is the angle of incidence.
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