Principles of Flighteasy#517
The critical angle of attack is:
A
The angle of attack at which CL is maximum and beyond which the wing stalls
CorrectB
Always 16°
C
The angle for best glide
D
The angle for minimum drag
Explanation
The critical (stall) angle is where maximum CL occurs; beyond it, airflow separates from the upper surface and lift decreases sharply.
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