Civil aviation dictionary
Aviation glossary
Terms, abbreviations and procedures explained without unnecessary jargon, with English names and clear definitions.
- Total entries
- 2480
- Terms
- 435
- Abbreviations
- 2045
H
- OperationsHOVER TAXI
Used to describe a helicopter/VTOL aircraft movement conducted above the surface and in ground effect at airspeeds less than approximately 20 knots.
- Abbreviationhow will arrival report be filed concerning
HIRIV stands for how will arrival report be filed concerning in FAA terminology.
- SafetyHuman factors
The influence of human capabilities, limitations and teamwork on flight safety.
- Abbreviationhurricane report
HUREP stands for hurricane report in FAA terminology.
- Abbreviationhydraulic
HYD stands for hydraulic in FAA terminology.
- Aircraft and systemsHydraulic system
A system transmitting power through pressurised fluid to aircraft mechanisms.
I
- Abbreviationice crystals (weather reports only)
IC stands for ice crystals (weather reports only) in FAA terminology.
- Abbreviationice on runway
IR stands for ice on runway in FAA terminology.
- Aircraft and systemsIce protection system
Equipment that prevents ice formation or removes accumulated ice.
- MeteorologyIcing
The formation of ice on aircraft surfaces in suitable airborne or ground conditions.
- Abbreviationicing in clouds
ICGIC stands for icing in clouds in FAA terminology.
- Abbreviationicing in clouds and precipitation
ICGICIP stands for icing in clouds and precipitation in FAA terminology.
- Abbreviationicing in precipitation
ICGIP stands for icing in precipitation in FAA terminology.
- OperationsIDENT
A request for a pilot to activate the aircraft transponder identification feature.
- OperationsIDENT FEATURE
The special feature in the Air Traffic Control Radar Beacon System (ATCRBS) equipment.
- Abbreviationidentification beacon
IBN stands for identification beacon in FAA terminology.
- Abbreviationidentification friend/foe
IFF stands for identification friend/foe in FAA terminology.
- Abbreviationif approach missed proceed
IFAMP stands for if approach missed proceed in FAA terminology.
- Abbreviationif authorized by ATC, DME may be used
IAATCD stands for if authorized by ATC, DME may be used in FAA terminology.
- Abbreviationif flight visibility becomes less than
IFVLS stands for if flight visibility becomes less than in FAA terminology.
- Abbreviationif holding
IFHOL stands for if holding in FAA terminology.
- Abbreviationif incorrect service direct
IISD stands for if incorrect service direct in FAA terminology.
- Abbreviationif instrument conditions encountered
IFINS stands for if instrument conditions encountered in FAA terminology.
- Abbreviationif unable
IFUN stands for if unable in FAA terminology.