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The operational modes | AP70/AP80 Operator Manual
The waypoint arrival circle
The arrival circle defines the point at which a turn is initiated when you are navigating a route.
WP1
WP2
The arrival circle should be adjusted according to boat speed. The higher the speed, the wider
the circle. The intention is to make the autopilot start the heading change in due time to
make a smooth turn onto the next leg.
The arrival circle is set in your chart system.
The figure below may be used to select the appropriate waypoint circle when creating the
route.
Example: With the speed of 20 knots you should use a waypoint circle with radius 0.09 nm.
¼ Note: The distance between any waypoints in a route must not be smaller than the radius of
the waypoint arrival circle when using automatic waypoint shift.
Start navigating
1. Start navigating a route on your chart system
2. Press the NAV (AP70) or TRACK key (AP80) on the autopilot
3. Accept the waypoint as the location to steer towards to activate the navigational mode
- If the waypoint is not accepted within 8 seconds, the dialog will be removed and the
autopilot will remain in active mode
Red or green arrow symbol in the dialog indicates required course change direction.
Arrival circles
arrival circle,
radius in 1/100 nm
Boat speed in knots
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