Glossary

Look up acronyms, technical terms and phrases to find out what they mean.

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ETCM

Definition
Engine trend and condition monitoring
Glossary Systems

ETD

Definition
Estimated Time of Departure, Estimating Departure
Glossary Flight planning Air traffic control Source: AIS

ETO

Definition
Estimated Time Over significant point
Glossary Flight planning Source: AIS

ETOPS

Definition
Extended range operations by turbine-engined aeroplanes
Glossary Flight planning Source: ICAO

ETP

Definition
Equi Time Interval
Glossary Measurement

ETT

Definition
Estimated Time Interval
Glossary Flight planning

EV

Definition
Every
Glossary Miscellaneous Source: AIS

eVTOL

Definition
Electric vertical take-off and landing
Glossary

EVU

Definition
Enforceable Voluntary Undertaking
Glossary Regulations Source: Civil Aviation Act 1988

EXC

Definition
Except
Glossary Instrument flight rules Source: AIS

EXCO

Definition
Executive Council
Glossary Organisation

EXER

Definition
Exercises, Exercising, to exercise
Glossary Training Source: AIS

EXP

Definition
Expect, Expected, Expecting
Glossary Communication Source: AIS

EXTD

Definition
Extend, Extending, Extended
Glossary Communication Source: AIS

F

Definition
Fixed (chart symbol)
Glossary Publications and charts Source: AIS
Online version available at: https://www.casa.gov.au//resources-and-education/glossary
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