Navigation Basics

ENTER

Turn

Anticipation

4. Press ENTER when the choices are selected.

The Apollo GX will provide information for you to smoothly transition from one flight plan leg to another. Turns are drawn on the moving map. You will receive a message about ten seconds before the turn. The message will count down to the beginning of the turn. The message shown below indicates that you are arriving at the SLE waypoint, the next leg desired track is 93°, and you should start your turn in about nine seconds.

Arrival: SLEDtk 093°Start Turn in 9Standard Turn Operation

While you are in the turn, the desired track and cross track are determined based on the turn. Turns are made at three degrees per second if the ground speed is under 250 knots. If ground speed is greater than 250 knots, the turn rate is set at 1.5 degrees per second.

SLE

MMV

010

 

 

Route

 

44S

Line

 

 

Aircraft

SLE

6S4

Present

 

 

Position

7S5

If turn angle is greater than

 

 

 

 

120º, the turn will start well

 

 

before reaching the waypoint

30

 

24.2

Route

 

Turn Anticipation

Line

 

Curves

Turn anticipation is not shown if the end of the turn extends beyond the beginning of the next anticipated turn. That is, if the two waypoints are too close, turn anticipation will not be shown. Turn anticipation curves are only drawn when the turn is greater than 5°. If the turn is greater than 120°, the Apollo GX will generate a step turn message prior to the waypoint.

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