Garmin NavTalk Pilot - Manual (Page 165)

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Appendix G
Navigation
Terminology
Altitude— Height above mean sea level (MSL).
Avg Speed— The average of all second-by-second speed readings since
last reset.
Bearing (BRG)— The compass direction from your present position to a
destination waypoint.
Course— The desired course between the active ‘from’ and ‘to’ waypoints.
Density Altitude— A measure of air density; standard altitude corrected
for temperature and pressure.
Distance (Dist)— The ‘great circle’ distance from present position to a
destination waypoint.
Dist to Dest— The ‘great circle’ distance from present position to a
GOTO destination, or the final waypoint in a route.
Dist to Next— The ‘great circle’ distance from present position to a
GOTO destination, or the next waypoint in a route.
ETA— Estimated Time of Arrival. The estimated time you will reach your
destination waypoint, based on current speed and track.
ETA at Dest— The estimated time you will reach a GOTO destination, or
the final waypoint in a route.
ETA at Next— The estimated time you will reach a GOTO destination, or
the next waypoint in a route.
ETE— Estimated Time Enroute. The estimated time required to reach a
destination or the next waypoint in a route.
Fuel— The fuel required to travel from present position to the indicated
route waypoint.
Glide Ratio (GR)— The ratio of horizontal distance travelled to vertical
distance travelled.
GR to Target— The glide ratio required to descend from present position
and altitude to the target altitude at the location specified in the Vertical Nav
settings.
Leg Dist— The distance between two route waypoints.