Definition
The tipping of an airplane onto a wingtip during the landing roll, caused by a crosswind getting under the upwind wing and lifting it while the airplane is still moving on the runway. It typically occurs when the upwind aileron is not held into the wind during the after-landing roll, allowing the wind to raise the upwind wing and roll the airplane toward the downwind side.
Plain English
After landing in a crosswind, if you don't hold the controls correctly, the wind can get under one wing, lift it up, and tip the airplane over onto the other wing.
Context Anchor
Seen in discussions of the after-landing roll, especially when a crosswind can lift a wing or push the airplane sideways after touchdown.
Derivation
A plain compound: 'roll' (to turn over sideways) plus 'over' (past the tipping point). The everyday image of a vehicle 'rolling over' carries directly into the aviation meaning.
Why Pilots Care
Uncorrected roll-over can damage the wing, propeller, or fuselage and may cause loss of directional control on the runway.
Grounding Statement
Picture an airplane slowing after touchdown while a strong wind lifts one wing; if the wheels become a pivot point, the airplane can tip over.
Intuition Check
Roll-over does not mean a normal roll or bank in flight. Here it means the airplane overturning on the ground.
Example Sentence 1
The instructor reminded the student to keep full aileron into the wind during the landing roll to prevent a roll-over.
Example Sentence 2
A late or insufficient correction allowed a gust to raise the wing and start the airplane into a roll-over on the runway.