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 Electronic Flight Bag (EFB) is an electronic device that hosts applications which allow flight crews to perform functions that were traditionally done using paper products and tools. Two Australian examples are AvPlan and Oz Runways. A US example is Jeppesen Aviator.
The height of any point on the ground above mean sea level (AMSL). As an example, an aerodrom could be 50 feet AMSL, which means it is 50 feet above the level of the sea.
Emergency Locator Transmitter. A device, which can either be portable or fixed in the aircraft that transmits a signal in the event of an emergency. Depending on the ELT, it may have to be manually turned on, or in most cases will be automatically turned on after some high impact. There is the possibility that a hard landing could activate an ELT. There are specific time periods to test an ELT on 121.5 MHz
Is when the engine stops producing power, either due to a loss of fuel or other fluids, or due to mechanical failure. Partial engine failures also occur, and some power may still be available.
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