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← TechnologyWhich stall consequence arises when asymmetrical ice accumulation changes airfoil geometry?
A)Uncommanded roll and yaw moment✓
B)Reduced parasite drag coefficient
C)Delayed boundary layer transition
D)Increased critical mach number
💡 Explanation
Icing leads to flow separation caused by **adverse pressure gradient**, creating differential lift across the wings which induces rolling. This occurs because the stalling angle of attack is locally decreased with increased drag; therefore, control difficulties increases, rather than improved airflow.
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