Plain English Meaning

A stall where one wing quits flying before the other, so the airplane rolls sharply toward the wing that stalled.

Full Definition

A stall in which one wing stalls before the other, producing unequal lift between the two wings. The wing that stalls first loses lift and drops, while the still-flying wing continues to produce lift, generating a strong rolling and yawing motion toward the stalled side. In the split-flap context, an asymmetric stall can occur when the wing without flap reaches its critical angle of attack before the wing with flap extended.

Context Anchor

Encountered in discussions of split or uneven flap conditions, stall recognition, and recovery from slow flight near the .