Glossary

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

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HGT

Definition
Height, Height Above
Glossary Measurement Source: AIS

HIAL

Definition
High Intensity Approach Lighting
Glossary Aerodrome Source: AIS

HIOL

Definition
High Intensity Obstacle Lights
Glossary Aerodrome Source: AIS

HIRL

Definition
High Intensity Runway Lighting
Glossary Aerodrome Source: AIS

HJ

Definition
Sunrise to Sunset (NOTAM or ERSA)
Glossary Communication Source: AIS

HLDG

Definition
Holding
Glossary Flight planning Source: AIS

HLS

Definition
Helicopter Landing Site
Glossary Aerodrome Source: AIS

HMI

Definition
Human-machine Interface
Glossary Systems

HN

Definition
Sunset to Sunrise (NOTAM or ERSA)
Glossary Communication Source: AIS

HO

Definition
Service available to meet operational requirements
Glossary Aerodrome Source: AIS
Online version available at: https://www.casa.gov.au//resources-and-education/glossary
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