---
title: "Ailerons — aviation glossary — OnlyPlanes"
description: "Wing control surfaces primarily used to control roll."
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Aircraft and systems

# Ailerons

Aileron

TERM · Aircraft and systems

At a glance

## Meaning of Ailerons

Wing control surfaces primarily used to control roll.

### More about Ailerons

Ailerons normally move in opposite directions, changing lift on the two wings and producing a rolling moment.

Their action may be supplemented by spoilers or other controls. Roll, yaw and the aircraft's resulting turn interact, so aileron movement alone does not describe the entire manoeuvre.

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