Plain English Meaning

A shudder you can feel through the whole airplane when the air starts to break away from the wing. It tells you the wing is close to stalling.

Full Definition

A noticeable shaking or vibration of the airplane's structure caused by turbulent, separated airflow striking the wings, tail, or fuselage as the wing approaches its critical angle of attack. It is one of the early aerodynamic warnings that a stall is developing.

Context Anchor

Felt during stall recognition and recovery practice, especially in power-off approach-to- for situations.