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← TechnologyWhich outcome occurs when turbine blade icing causes asymmetric drag in a multi-engine turboprop aircraft?
A)Reduced stall angle of attack
B)Induced yaw moment increases sharply✓
C)Critical Mach number is increased
D)Lift-to-drag ratio increases linearly
💡 Explanation
Asymmetric drag from ice alters airflow via induced yaw moment, because lift distribution changes non-uniformly. Therefore, the aircraft yaws towards the higher drag side rather than experiencing stall, and altered Mach or lift parameters result less immediately.
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