Glossary

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

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IDENT

Definition
Identification
Glossary Licensing Source: AIS

IF

Definition
Instrument Flight
Glossary Instrument flight rules Flight planning Source: AIS

IF

Definition
Intermediate Approach Fix
Glossary Navigation

IFF

Definition
Identification Friend/Foe
Glossary Communication Source: AIS

IFR

Definition
Instrument Flight Rules
Description
Required for flight in 'non-visual meteorological conditions'. Rough translation: The weather is so bad you can't see out the windows.
Glossary Instrument flight rules Flight planning Source: AIS

IFSD

Definition
In-flight Shutdown
Glossary Safety Source: ICAO

IG

Definition
Implementation Group
Glossary Organisation

IGA

Definition
International general aviation
Glossary Organisation

ILS

Definition
Instrument Landing System
Glossary Instrument flight rules Flight planning Source: AIPICAO

IM

Definition
Inner Marker
Glossary Navigation Source: AIS
Online version available at: https://www.casa.gov.au//resources-and-education/glossary
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