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Garmin aera 500 Series Pilot’s Guide
190-01117-02 Rev. A
Appendix J
177
Overview GPS Navigation Flight Planning Hazard Avoidance Additional Features Appendices Index
Grid MORA 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
Groundspeed The velocity that the aircraft is travelling relative to a ground
position.
Ground Track see Track
GS Ground speed
Heading The direction an aircraft is pointed, based upon indications
from a magnetic compass or a properly set directional gyro.
Hg mercury
hPa hectopascal
hr hour
HSI Horizontal Situation Indicator
Hz Hertz
IAF Initial Approach Fix
IAT Indicated Air Temperature
ICAO International Civil Aviation Organization
IFR Instrument Flight Rules
ILS Instrument Landing System
IMC Instrument Meteorological Conditions
in inch
Indicated Information provided by properly calibrated and set
instrumentation on the aircraft panel.
in HG inches of mercury
kg kilogram
kHz kilohertz
km kilometer