Flight Level
An altitude that uses a specific pressure datum of 1013.2 hPa. When descending, the altimeter is set from 1013.2 to local area QNH. When ascending through the transition level, the altimeter is set to 1013.2 hPa.
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.
An altitude that uses a specific pressure datum of 1013.2 hPa. When descending, the altimeter is set from 1013.2 to local area QNH. When ascending through the transition level, the altimeter is set to 1013.2 hPa.
7 Day
FREE
Trial
Get access to the complete catalogue of your chosen subscription level for 7 days. After your free trial, your paid subscription automatically commences. Cancel anytime.
Get FREE Trial