Glossary Papakupu
Explanations of abbreviations and acronyms.
- HAA
- Helicopter air ambulance
- Hard landing
- Sometimes referred to as a heavy landing, when a landing exceeds the manufacturer’s limitations, often expressed as a rate of descent or a ‘g’ loading. This may result in a loss of control and/or aircraft damage and will require an inspection.
- Heading (marine)
- The compass direction in which a vessel’s bow is pointing.
- Headway
- Time or distance interval between trains on the same line
- Heaving Line
- Light line thrown to pass a heavier mooring line
- Heavy rain
- Heavy or very heavy rates of rainfall will clearly have a detrimental impact upon general visibility. However, in addition to any true meteorological reduction of visibility, raindrops impacting the windscreen/canopy will additionally reduce visibility. Windscreen wipers (if fitted) may not be able to fully cope with the rainfall rate. (World Meteorological Organization, n.d.)
- Heli winch
- A helicopter operation involving the use of a hoist mechanism with cable and hook that allows a lowering and/or pick up of an external load/cargo/person from the side of the helicopter.
- Helicopter frost protection
- Helicopter frost protection involves low-level flying over an affected crop to mix warmer air aloft with the cooler air below to prevent frost from settling on the fruit.
- Heliport
- Any defined area of land or water, and any defined area on a structure, intended or designed to be used either wholly or partly for the landing, departure and surface movement of helicopters
- HEMS
- Helicopter emergency medical service
- HH
- Waikato Hospital
- HN
- Hamilton Airport
- HNVGO
- Helicopter night vision goggle operations
- Hobbs meter
- An activated hour meter used to track the helicopter’s time in service.
- Hold Baggage
- Checked luggage carried in an aircraft hold
- Home base
- Where pilots would commence and conclude their rosters.
- Hook and loop retaining strap
- The term ‘hook and loop retaining strap’ is commonly used internationally in manuals. An alternative term, ‘hook and loop style fastener’ is often used in safety information bulletins.
- Hot air baloon
- Incorporates the complete balloon assembly, including the basket, burners and envelope.
- Hourly rainfall rate
- A rolling average hourly rate
- hPa
- hectopascal
- HUET
- Helicopter underwater escape training
- Hull loss
- The destruction or write-off an aircraft