Simrad AP44 Quick Manual page 20

18
To obtain satisfactory navigation steering, the autopilot system
must have valid input from the chartplotter. Autosteering must be
tested and determined satisfactory prior to entering NAV mode.
Ú Note:
If the chartplotter does not transmit a message with
bearing to next waypoint, the autopilot will steer using Cross
Track Error (XTE) only. In that case you must revert to AUTO
mode at each waypoint and manually change set course to
equal bearing to next waypoint and then select NAV mode
again.
Prior to entering NAV mode the chartplotter must be navigating a
route or towards a waypoint.
Initiate NAV mode by selecting the NAV option in the Mode list
•
• Confirm to switch to NAV mode in the dialog.
Turning in NAV mode
When your vessel reaches a waypoint, the autopilot will give an
audible warning and display a dialog with the new course
information.
There is a user defined limit for the allowed automatic course
change to next waypoint in a route. If the course change is more
than this set limit, you are prompted to verify that the upcoming
course change is acceptable.
• If the required course change to the next waypoint is less than
the course change limit, the autopilot will automatically change
the course. The dialog will disappear after 8 seconds unless
cleared by the Pages key.
• If the required course change to next waypoint is more than the
set limit, you are prompted to verify that the upcoming course
change is acceptable. If the turn is not accepted, the vessel will
continue with the current set heading.
Autopilot modes | AP44 Operator Manual