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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Deviation Card

A card that is placed near the compass in the aircraft, showing the difference between magnetic north and the direction the compass is pointing, and also showing the correction to use in order to fly the correct compass heading.

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