Navigation Basics

Turn anticipation will not be available when sequencing is on Hold; for the MAP or MAHP of an approach; or for the “flyover” waypoints in an approach.

Wind and Turn Anticipation

The graphic Turn Anticipation curve drawn on the map display is based on your current ground speed. Once you enter the turn, the graphic curve is no longer updated. You may need to increase or decrease your standard rate turn to compensate for wind. If your installation includes a GPSS autopilot interface, the Apollo GX will monitor your progress throughout the turn and send corrections to the autopilot. Wind conditions requiring steeper than maximum bank angles may result in overshooting the new course line.

GPSS GPS Steering (GPSS) information is provided by your Apollo GX when setup with a properly installed autopilot. An autopilot guided by information from your Apollo GX will be more accurate, faster responding, and smoother than using a CDI. GPSS works with the Flight Plan and Turn Anticipation features to have your avionic equipment do more of the work for you.

Standard GPSS OperationOperating your Apollo GX with an autopilot is simple:1)Select a waypoint or flight plan in the Apollo GX.

2)Select GPSS mode on the autopilot or on the HDG/GPSS selector switch (see your autopilot operating instructions).

3)Fly. Your Apollo GX will direct the autopilot.

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