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← TechnologyWhich outcome occurs from exceeding a commercial airliner's critical mach number during descent?
A)Abrupt loss of lift (Mach Tuck)✓
B)Engine flameout due to air starvation
C)Structural failure from flutter
D)Runaway trim due to sensor failure
💡 Explanation
Elevated speed beyond the critical Mach triggers shockwave formation that moves the center of pressure, causing a pitch-down moment known as Mach Tuck. This reduces lift because the shock abruptly changes airflow near the control surfaces, therefore the aircraft pitches down rather than maintaining controlled descent.
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