ATPL Aero & Systems Practice Questions - CASA Airline Transport Pilot Licence (Aeroplane) - Aerodynamics & Aircraft Systems (AASA) Exam

In high-speed flight, what does the term 'Mach Tuck' refer to?

An automatic nose-down pitching moment caused by the rearward movement of the center of pressure as shockwaves form. A sudden nose-up pitch caused by the wing tips stalling first on a swept-wing aircraft. The loss of elevator effectiveness due to the shockwave attaching to the trailing edge. A lateral oscillation (yaw/roll coupling) experienced when flying near the maximum operating Mach number.

Correct Answer:

An automatic nose-down pitching moment caused by the rearward movement of the center of pressure as shockwaves form.

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