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← ScienceWhich outcome occurs when an aircraft exceeds its critical angle of attack?
A)Boundary layer flow becomes turbulent✓
B)Induced drag markedly decreases
C)Lift-to-drag ratio rapidly increases
D)Laminar airfoil pressure profile steadies
💡 Explanation
The onset of stall leads to increased drag because adverse pressure gradients become too great, therefore boundary layer separation accelerates which induces flow reversal. This causes boundary layer flow to transition to turbulence rather than improved performance.
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