Navigation Terms; Illustrated Nav Terms; Illustrated Vertical Nav Terms - Garmin GNS 430 Pilot's Manual & Reference

SECTION 14 – MESSAGES,
ABBREVIATIONS, & NAV TERMS

14.3 NAVIGATION TERMS

The following navigation terms are used on the GNS 430 and in this Pilot' s Guide. Refer to Figures 14-1 and
14-2 for graphic representation of navigation terms.
WPT 1
Figure 14-1 Illustrated NAV Terms
Term
ALT (altitude)
BRG (bearing)
CAS (calibrated
airspeed)
CTS (course to steer)
CUM (cumulative)
DIS (distance)
DOP (dilution of
precision)
DTK (desired track)
EFF (efficiency)
ENDUR (endurance)
14-12
WPT 2
NORTH
Height above mean sea level (MSL).
The compass direction from the present position to a destination waypoint.
Indicated airspeed corrected for instrument errors.
The recommended direction to steer in order to reduce course error or stay on course. Provides
the most efficient heading to get back to the desired course and proceed along the flight plan.
The total of all legs in a flight plan (cumulative distance).
The 'great circle' distance from the present position to a destination waypoint.
A measure of satellite geometry quality on a scale of one to ten (lowest numbers are best,
highest numbers are worst).
The desired course between the active "from" and "to" waypoints.
A measure of fuel consumption, expressed in distance per fuel units (e.g., nautical miles per
gallon).
Flight endurance, or total available flight time based upon available fuel.
GNS 430(A) Pilot's Guide and Reference
TIME AND DISTANCE
TO PROFILE
CURRENT ALTITUDE
AND POSITION
DISTANCE TO TARGET
Figure 14-2 Illustrated Vertical NAV Terms
Description
TARGET ALTITUDE
AND POSITION
AIRPORT
190-00140-00 Rev. P