the Aviation Dictionary

GAA - general aviation activity
GAAA - general aviation
activity and avionics
GAD0 - General Aviation
District Office
gal - Gallon.
GBAS - ground based
augmentation system
GCA - ground control approach
GCO - ground communication
outlet
GCU - generator control unit
GEO - geostationary satellite
GFP - Ground Fine Pitch.
GLS - GNSS landing system
GNAS - General National
Airspace System
GNSS - Global Navigation
Satellite System
GNSS - global navigation
satellite system
GNSSP - global navigation
satellite system panel
GOES - Geostationary
Operational Environmental
Satellite
GOESF - GOES Feed Point
GOEST - GOES terminal
equipment
GPA - gas path analysis
gph - gallons per hour
GPS -global
positioning satellite
GPS - global positioning system
GPU -- ground power unit
GPWS - ground proximity
warning system
GRADE - graphical airspace
design environment
GRI - group repetition interval
GS - glide slope
GS - groundspeed
GSA - General Services
Administration
GSD - geographical situation
display
GSE - ground support equipment
GSI - glide slope indicator
GTE - Gas Turbine Engine.
GUS - ground uplink station
H - Non Directional Radio
Homing Beacon (NDB)
HAA - height above airport
HAL - height above landing
HARS - high altitude route
system
HASOV - hot air shut-off valve
HAT - height above touchdown
HAT - height above touchdown
zone
HAZMAT - hazardous materials
HCAP - high capacity carriers
HDME - NDB with distance
measuring equipment
HDQ - headquarters
HDTA -high
airporls
HE - High Energy.
HELI - heliport
HF - high frequency
HF - high frequency
Hg - Mercury.
density traffic
HGS - head-up guidance system
HH - NDB, 2kw or more
HI EFAS - high aItitude EFAS
(enroute flight advisory service)
HIG - hermetically sealed
integrating gyro
HIRL - high intensity runway
lights
HIWAS - hazardous inflight
weather advisory senrice
HLDC - high level data Iink
control
HMU - hydromechanical unit
HOC - high oil consumption-jet
engine
HOV -high
HP -High
HP -Horse
occupancy vehicle
Pressure.
Power.
Aircraft Technical Book Company
P.O. Box 270
Tabernash, CO 80478
http://w.ACTechbooks.com
hr - hour.
HSI -horizontal
indicator
situation
HUD - head-up display
HSTCU - horizontal stabilizer
trim control unit
HUD - Housing and Urban
Development
HVOR - high altitude VOR
HWAS - hazardous in flight
weather advisory
HYD IS0 -hydraulic
Hz - hertz
isolation
IlAFSS - International AFSS
IA - indirect access
IA - inspection authorization
IAF - initial approach fix
IAP - instrument approach
procedure
IAPA - instrument approach
procedures automation
IAS - indicated airspeed
IAWP - initial approach
waypoint
IBM - International Business
Machines
IBP - international boundary
point
IBR - intermediate bit rate
IC - integrated circuit
ICA - initial climb area
ICAO - International Civil
Aviation Organization
ICSS - International
Communications Switching
Systems
IDAT - interfacility data
IDG - integrated drive generator
IEC - integral electronic control
IEPR - integrated engine
pressure ratio
IF - intermediate fix
if - intermediate frequency
IFCP - interfacility
communications processor