Discussion
Consider the following statements about the angle of attack.
1. It is measured from the chord line to the relative wind.
2. It is the same as the pitch attitude of the aircraft.
3. Exceeding its critical value causes a stall.
Which of the statements given above is or are correct?
Answer: C
Correct answer: 1 and 3 only
Statements 1 and 3 are correct: angle of attack is measured from the chord line to the relative wind, and exceeding its critical value causes the stall. Statement 2 confuses it with pitch attitude, which is referenced to the horizon. The two differ by the flight path angle, and an aircraft can be nose-down and stalled at the same time.
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