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.
A wind that blows in the opposing direction that the aircraft is travelling. In flight, this decreases the groundspeed. A headwind is crucial for both take-offs and landings and we always land into wind
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