Garmin GPS III Owner's Manual

Also see for GPS III: Declaration of conformity Quick guide Owner's manual Owner's manual

Garmin GPS III Owner's Manual Manual pdf 106 page image

Altitude—Height above mean sea level (MSL).Avg Speed—The average of all second-by-second speed readings sincelast reset.Bearing (BRG)—The compass direction from your present position to adestination waypoint.Course—The desired course between the active ‘from’ and ‘to’ waypoints.Distance (Dist)—The ‘great circle’ distance from present position to adestination waypoint.Dist to Dest—The ‘great circle’ distance from present position to aGOTO destination, or the final waypoint in a route.Dist to Next—The ‘great circle’ distance from present position to aGOTO destination, or the next waypoint in a route.ETA—Estimate Time of Arrival. The estimated time you will reach yourdestination 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.Fuel—The fuel required to travel from present position to the indicatedroute waypoint.Glide Ratio (GR)—The ratio of horizontal distance travelled to verticaldistance travelled.GR to Target—The glide ratio required to descend from present positionand altitude to the target altitude at the location specified in the VerticalNav settings.Leg Dist—The distance between two route waypoints.Leg Fuel—The fuel required to travel from a route waypoint to the nextwaypoint (in sequence) in the route.Leg Time—The time required to travel from a route waypoint to thenext waypoint (in sequence) in the route.Max Speed—The maximum second-by-second speed recorded since lastreset.Odometer—A running tally of distance travelled, based upon the dis-tance between second-by-second position readings. Both the ‘Odometer’and ‘Trip Odometer’ are resettable, however the ‘Odometer’ is typicallyused to keep track of total distance covered, where the ‘Trip Odometer’ isused to keep track of shorter point-to-point distances.Off Course—The distance you are off a desired course in either direc-tion, left or right. Also referred to as ‘cross-track error’ or ‘course error’.Ref—Reference Waypoint. Used to created a new waypoint, by specifyinga bearing and distance from an existing (reference) waypoint.Speed—The current velocity at which you are travelling, relative to aground position. Also referred to as ‘ground speed’.Time To—The estimated time required to reach a GOTO destination, orthe next waypoint in a route. Also referred to as ‘estimated time enroute’.98APPENDIX GNavigation Terms