What is Mach tuck?

Mach tuck refers to a specific aerodynamic phenomenon that occurs when an aircraft approaches the speed of sound, leading to a dive caused by shockwaves forming over the wing. As an aircraft accelerates past transonic speeds, the airflow over the wings can become disturbed, creating a change in lift characteristics. The formation of shockwaves can lead to a sudden shift in the center of pressure, which typically moves rearward, resulting in a pitching moment that causes the nose of the aircraft to pitch down. This effect is particularly pronounced in designs that have a specific wing and fuselage configuration as they approach critical speeds.

Understanding Mach tuck is crucial for pilots, as it highlights the importance of maintaining control during high-speed flight. Proper training and awareness of this phenomenon can help prevent loss of control situations that can occur during transonic flight.