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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Sink

A condition where the aircraft feels like it is losing lift and has an increased rate of descent. This can normally be felt during landing where a smooth descent rate is set up and some windshear is experienced, causing a small, sudden drop in altitude.

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