Garmin 530 Guida Utente
172
12 - MESSAGES,
ABBREVIATIONS &
NAV TERMS
172
12 - messages
abbreviations &
nav terms
Navigation Terms
The following navigation terms are used
on the GNS 530:
ALT (altitude) — Height above mean sea level (MSL).
BRG (bearing) — The compass direction from your present position to a destination waypoint.
CAS (calibrated airspeed) — Indicated airspeed corrected for instrument errors.
CTS (course to steer) — The recommended direction to steer in order to reduce course error or stay on
course. Provides the most effi cient heading to get back to the desired course and proceed along your fl ight
plan.
CUM (cumulative) — The total of all legs in a fl ight plan (such as “cu mulative distance”).
DIS (distance) — The “great circle” distance from your present position to a destination waypoint.
DOP (dilution of precision) — A measure of satellite geometry quality on a scale of one to ten (lowest num-
bers are best, highest numbers are worst).
DTK (desired track) — The desired course between the active “from” and “to” waypoints.
EFF (effi ciency) — A measure of fuel con sumption, expressed in distance per fuel units (e.g., nautical miles
per gallon).
ENDUR (endurance) — Flight endurance, or total available fl ight time based upon available fuel.
EPE (estimated position error) — A measure of satellite geometry quality and additional factors, expressed
as a horizontal position error in feet or meters.
ESA (en-route safe altitude) — The rec ommended minimum altitude within a ten mile radius of your
course on an active fl ight plan or direct-to.
ETA (estimate time of arrival) — The estimated time at which you will reach your destination waypoint,
based upon current speed and track.
ETE (estimated time en route) — The time it will take to reach the des tination waypoint, from present
position, based upon current ground speed.
FF (fuel fl ow) — The fuel fl ow rate, expressed in fuel units per time (e.g., gallons per hour).
FOB (fuel on board) — The total amount of usable fuel on board the aircraft.
GS (ground speed) — The velocity you are travelling relative to a ground position.
HDG (headin g) — The direction an aircraft is pointed, based upon indications from a magnetic compass or a
properly set directional gyro.
BRG (bearing) — The compass direction from your present position to a destination waypoint.
CAS (calibrated airspeed) — Indicated airspeed corrected for instrument errors.
CTS (course to steer) — The recommended direction to steer in order to reduce course error or stay on
course. Provides the most effi cient heading to get back to the desired course and proceed along your fl ight
plan.
CUM (cumulative) — The total of all legs in a fl ight plan (such as “cu mulative distance”).
DIS (distance) — The “great circle” distance from your present position to a destination waypoint.
DOP (dilution of precision) — A measure of satellite geometry quality on a scale of one to ten (lowest num-
bers are best, highest numbers are worst).
DTK (desired track) — The desired course between the active “from” and “to” waypoints.
EFF (effi ciency) — A measure of fuel con sumption, expressed in distance per fuel units (e.g., nautical miles
per gallon).
ENDUR (endurance) — Flight endurance, or total available fl ight time based upon available fuel.
EPE (estimated position error) — A measure of satellite geometry quality and additional factors, expressed
as a horizontal position error in feet or meters.
ESA (en-route safe altitude) — The rec ommended minimum altitude within a ten mile radius of your
course on an active fl ight plan or direct-to.
ETA (estimate time of arrival) — The estimated time at which you will reach your destination waypoint,
based upon current speed and track.
ETE (estimated time en route) — The time it will take to reach the des tination waypoint, from present
position, based upon current ground speed.
FF (fuel fl ow) — The fuel fl ow rate, expressed in fuel units per time (e.g., gallons per hour).
FOB (fuel on board) — The total amount of usable fuel on board the aircraft.
GS (ground speed) — The velocity you are travelling relative to a ground position.
HDG (headin g) — The direction an aircraft is pointed, based upon indications from a magnetic compass or a
properly set directional gyro.
WPT 1
XTK
NORTH
WPT 2
BRG
GS
DIS
AIRPLANE
DTK
TRK
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4/11/2003, 1:45:48 PM