Aviation Dictionary

On this page you will find a searchable and comprehensive alphabetical list of aviation terms. You can help us make it the most comprehensive list in the world. If we have missed anything, click on the ‘send us your word’ button to send us your word, acronym or definition and we will consider adding it to our dictionary.

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Aileron

A control surface located near the wing tips and controls the roll around the longitudinal axis. Ailerons move in opposite directions to each other, as one moves up, the other moves down.

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