Navigation Basics

If the GPS sensor is not sending a valid position, or the current TO waypoint is blank, the CDI will display “—Nav Flagged—”.

TO/FROM Indicator

The triangle symbol is also used as a TO-FROM indicator. When the triangle is facing up, you are on the “TO” side of the destination waypoint. When the triangle is facing upside down, you are on the “FROM” side of the destination waypoint.

TO side of destination

TO

(destination)

waypoint

WPT

 

“

 

 

 

From side of destination

 

 

 

 

 

 

waypoint

”

FROM

(origin)

WPT

Desired Track (Dtk)

Desired Track is the initial course angle between the FROM and TO waypoints referenced to the magnetic variation at the current FROM waypoint. Desired Track is shown from 0 to 359 degrees in one degree increments and is updated in reference to your present position. The Leg distance shown (42.4 nm) is the current FROM/TO distance. DTK varies with Turn Anticipation (page 36) and DME Arcs (page 26).

ete aSLE

00:37

0.006 “

 

Dtk 173

42.4nm

 

 

Leg (FROM-TO) Distance

The distance from current FROM waypoint to the current TO waypoint is shown as a value on the right side of the Desired Track page, but does not show any label. In this example, the leg (FROM-TO) distance is 42.4 nm. The nautical mile units are 0.00 to 9.99 nm at 0.01 nm resolution, 10.0 to 99.9 nm at 0.1 nm resolution, and 100 to 9999 nm at one nm resolution. Kilometer units are 0.00 to 99.99 km at 0.01 km

3-6