Raymarine GyroPlus Yaw Sensor Installation Manual download pdf (Page 35)

Chapter 3: Operating instructions 27

Cross track error

Cross track error (XTE) is the distance between the current position and a planned

track leg.

There are a number of reasons why you may have a cross track error (XTE), for

example:

• Pressing the track button at a position some distance from the route.

• Course change to avoid an obstacle.

• Waypoint arrival under certain conditions (See Waypoint arrival on page 28)

If the cross track error is greater than 0.3 nm, the SmartPilot will sound the Large

Cross Track Error warning and show whether you are to the port (Pt) or starboard

(Stb) of the planned track.

Note: The cross track error alarm will continue to display and sound until it is reduced to less

than 0.3Nm.

CAUTION: When returning to TRACK mode the autopilot will

correct the XTE in order to keep to the defined track leg. The

direction of turn may not coincide with the bearing to waypoint

and may be different from that expected.

Cross

track error

Cross

track error

Target

Waypoint

Target

Waypoint

Example1:

Initial turn toward waypoint

Example2:

Initial turn away from actual

waypoint position.

D10917-1

Course correction

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Raymarine GyroPlus Yaw Sensor Installation Manual Page 35