Glossary

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

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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

HOFO

Definition
Head of Flying Operations
Glossary Flight operations

HOO

Definition
Head of Operations
Description
An individual who is appointed by a flying school and CASA to supervise the flying training given by the school.
Glossary Ground Operations

HOSP

Definition
Hospital Aircraft
Glossary Aircraft

HOTAS

Definition
Head of Training and Standards
Glossary Training Source: AIS

HOTC

Definition
Head of Training and Checking
Glossary Training

HP

Definition
Horse Power
Glossary Measurement

HPA

Definition
HectoPascal
Glossary Measurement

HR

Definition
Hours
Glossary Measurement Source: AIS

HS

Definition
Service available during hours of scheduled operations
Glossary Communication Source: AIS

HSL

Definition
Hold Short Lights
Glossary Aerodrome Navigation Source: AIS

HUD

Definition
Head Up Display
Glossary Systems Source: AIS

HURCN

Definition
Hurricane
Glossary Meteorology
Online version available at: https://www.casa.gov.au//resources-and-education/glossary
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