Operation
20220596G 23
2.11 Navigating with the AP21 or AP22
The autopilot has the capability to use steering information from
an external navigator (GPS/Chart Plotter) to direct the boat to a
specific waypoint location, or through a route of waypoints. In
NAV mode, the autopilot uses the heading sensor as it's
reference for course keeping. The steering information received
from the external navigator alters the set course to direct the
autopilot to the destination waypoint.
The autopilot is designed to steer in mixed mode operation. This
combines the straight steering capability of cross track error
(XTE) steering in conjunction with the turning capability of
bearing mode steering.
To obtain satisfactory navigation steering, the following points
must be fulfilled prior to entering the NAV mode:
• The autopilot autosteering must be tested and found
satisfactory.
• The navigation receiver must be operating and the navigation
system (GPS/Chart Plotter) must be in full operating mode
with adequate signal characteristics for valid position and
steering data.
• At least one waypoint must be entered and selected as the
current waypoint in the navigation receiver.
• The navigation source in the AUTOPILOT USER SETUP
menu must be set for the navigator that contains the current
waypoint.
Note ! Navigational steering must only be used in open waters. The
process of having an external navigation receiver direct an
autopilot can be a slow acting process. By selecting the NAV
mode, the autopilot is set for automatic steering on the current
set course and then waits for the user to accept the course
change to the destination waypoint.
Press
NAV
WP: Egersund
Brg.: 153°
Chg.: 23°
OK?:Press NAV
to activate
prompt display
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