Definition
A stall that occurs when the airplane is flown with the controls crossed — typically rudder applied in one direction while opposite aileron is held to keep the wings level — and the wing reaches its critical angle of attack. The uncoordinated condition causes one wing to stall before the other, often producing a sudden roll toward the lowered wing and a rapid nose drop. It is most commonly encountered in the base-to-final turn when a pilot tries to tighten an overshooting turn with rudder while holding opposite aileron to prevent over-banking.
Plain English
A stall that happens when you are pushing the rudder one way and holding the control wheel the other way at the same time. Because the airplane is not flying straight through the air, one wing stalls before the other and the airplane can roll over sharply with very little warning.
Context Anchor
Most often discussed in stall/spin training and in the base-to-final turn, where a pilot may try to force the nose around with rudder while using opposite aileron to control bank.
Derivation
Called crossed-control because the two main flight controls (rudder and ailerons) are working against each other rather than together. In coordinated flight they move in the same direction; here they are crossed.
Why Pilots Care
It can quickly develop into an unintentional spin, especially dangerous during low-altitude maneuvers or traffic pattern operations.
Grounding Statement
Picture a slow turn where the rudder is forcing the nose one way while the ailerons are trying to hold the wings the other way; that mismatch can make one wing stall first.
Intuition Check
Do not read “crossed-control” as simply “using more than one control at the same time.” It means the controls are being held in opposition, especially rudder one way and aileron the other.
Example Sentence 1
The instructor demonstrated a crossed-control stall at a safe altitude so the student could feel how suddenly the wing drops.
Example Sentence 2
Recovering from a crossed-control stall requires centering the controls and reducing angle of attack before attempting any turn.