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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Most often referred to when ‘trimming’ the aircraft using a trim wheel inside the aircraft. In smaller aircraft, a movable trim tab is located on the elevator and can be manually adjusted in flight to balance out small pitching forces. There can also be a fixed trim tab, normally on the rudder which can only be adjusted on the ground. In larger aircraft, the rudder will also have a movable trim tab. 

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