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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Downwind Checks

Checks done when on the downwind leg of a circuit. These may vary slightly between different training organisations, but comprise of a BUMFH, BUMPFISH or similar. The purpose of this checklist is to ensure you are ready to land the aircraft, for example, ensuring that your landing gear is down is quite important.

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