Garmin G3X Pilot's Manual page 373

gal
Glide Ratio, G/R
GND
gph
GPS
Grid MORA
Groundspeed
Ground Track
GS
Heading
Hg
hPa
hr
HSI
Hz
IAF
IAT
ICAO
IFR
ILS
IMC
in
190-01115-00 Rev. G
gallon(s)
The estimated distance an aircraft will move forward for any
given amount of lost altitude.
ground
gallons per hour
Global Positioning System
Grid Minimum Off-Route Altitude; one degree latitude by
one degree longitude in size and clears the highest elevation
reference point in the grid by 1000 feet for all areas of the
grid
The velocity that the aircraft is travelling relative to a ground
position.
see Track
Ground speed
The direction an aircraft is pointed, based upon indications
from a magnetic compass or a properly set directional gyro.
mercury
hectopascal
hour
Horizontal Situation Indicator
Hertz
Initial Approach Fix
Indicated Air Temperature
International Civil Aviation Organization
Instrument Flight Rules
Instrument Landing System
Instrument Meteorological Conditions
inch
Garmin G3X Pilot's Guide
Appendix H
355