|
Definition
|
Contraction
|
Usage
|
|
gain time
control
|
GTC
|
ATC
|
|
gallons
|
GALS
|
ATC
|
|
garble
|
GRBL
|
GEN
|
|
general
|
GEN
|
GEN
|
|
general
aviation
|
GA
|
GEN
|
|
General
Aviation District Office
|
GADO
|
GEN
|
|
general
notice
|
GENOT
|
GEN
|
|
General
Safety District Office
|
GSDO
|
GEN
|
|
general
safety inspector
|
GSI
|
GEN
|
|
General
Services Administration
|
GSA
|
GEN
|
|
generator
|
GNTR
|
GEN
|
|
geographic
|
GEO
|
GEN
|
|
geographical
reference
|
GEOREF
|
GEN
|
|
Geoid
undulation
|
GUND
|
ICAO
|
|
get quick
answer
|
GQA
|
GEN
|
|
gigahertz
|
GHZ
|
GEN
|
|
give
better address
|
GBA
|
GEN
|
|
give
better reference
|
GBR
|
GEN
|
|
giving
|
GVG
|
GEN
|
|
glaze
icing
|
GICG
|
NWS
|
|
glide
angle
|
GA
|
GEN
|
|
glide path
|
GP
|
GEN
|
|
glide
slope
|
GS
|
GEN
|
|
glider
|
GLD
|
ICAO
|
|
glider
|
GLDR
|
GEN
|
|
global
navigation satellite system
|
GLONASS
|
ICAO
|
|
global
navigation satellite system (in general)
|
GNSS
|
ICAO
|
|
Global
orbiting navigation satellite system
|
GLONASS
|
ICAO
|
|
global
positioning system
|
GPS
|
ATC
|
|
Go ahead,
resume sending (to be used in AFS as a procedure signal)
|
GA
|
ICAO
|
|
government
|
GOVT
|
GEN
|
|
government
bill of lading
|
GBL
|
GEN
|
|
government
vehicle
|
GVH
|
GEN
|
|
Governor
|
GOV
|
GEN
|
|
GPS
Integrity Channel
|
GIC
|
ATC
|
|
gradient
|
GRAD
|
NWS
|
|
gradual
|
GRADU
|
ICAO
|
|
gradual
|
GRDL
|
NWS
|
|
Grand
Banks
|
GRBNKS
|
NWS
|
|
grass
landing area
|
GRASS
|
ICAO
|
|
gravel
|
GRVL
|
GEN
|
|
Great
Circle
|
GTCL
|
GEN
|
|
Great
Lakes
|
GRTLKS
|
NWS
|
|
Great
Lakes Region, FAA
|
AGL
|
GEN
|
|
greater
|
GTR
|
GEN
|
|
green
|
G
|
ICAO
|
|
Greenwich
Mean Time
|
GMT
|
GEN
|
|
Greenwich
Mean Time
|
Z
|
GEN
|
|
grid point
values of processed meteorological data
|
GRID
|
ICAO
|
|
gross
weight
|
GWT
|
GEN
|
|
ground
|
GND
|
GEN
|
|
ground
check
|
GNDCK
|
ICAO
|
|
ground
communication outlet
|
GCO
|
ATC
|
|
ground
control
|
GC
|
GEN
|
|
ground
control approach
|
GCA
|
GEN
|
|
ground
control intercept
|
GCI
|
GEN
|
|
ground
delay program
|
GDPGM
|
ATC
|
|
ground
delay program
|
GDP
|
ATC
|
|
ground
earth station
|
GES
|
ICAO
|
|
ground fog
|
GNDFG
|
NWS
|
|
ground
movement chart (followed by name/title)
|
GMC
|
ICAO
|
|
ground
point of intercept
|
GPI
|
ATC
|
|
ground
speed
|
GS
|
ATC
|
|
ground
stop
|
GS
|
ATC
|
|
ground to
air
|
G/A
|
ICAO
|
|
ground to
air and air to ground
|
G/A/G
|
ICAO
|
|
ground
visibility
|
GV
|
NWS
|
|
Gulf of
Alaska
|
GLFALSK
|
NWS
|
|
Gulf of
California
|
GLFCAL
|
NWS
|
|
Gulf of
Mexico
|
GLFMEX
|
NWS
|
|
Gulf of
St. Lawrence
|
GLFSTLAWR
|
NWS
|
|
gusts
|
GSTS
|
NWS
|
|
gusts
reaching (knots) (weather reports only)
|
G
|
NWS
|
|
gusty
|
GSTY
|
NWS
|