What is the term for the critical angle of attack at which a wing stalls?

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Multiple Choice

What is the term for the critical angle of attack at which a wing stalls?

Explanation:
The critical angle of attack is the angle at which the wing flow can no longer stay attached and separation begins, causing stall. This angle, often denoted alpha_crit, is the specific angle that marks the onset of stall. CLmax, the maximum lift coefficient, is the lift capability reached at stall, but it’s a lift-value, not the angle itself. The phrase stall angle is also used, but the standard term for the angle at which stall occurs is the critical angle of attack.

The critical angle of attack is the angle at which the wing flow can no longer stay attached and separation begins, causing stall. This angle, often denoted alpha_crit, is the specific angle that marks the onset of stall. CLmax, the maximum lift coefficient, is the lift capability reached at stall, but it’s a lift-value, not the angle itself. The phrase stall angle is also used, but the standard term for the angle at which stall occurs is the critical angle of attack.

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