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Autopilot | NSO-II Operator Manual
Waypoint arrival circle
The Arrival radius denes 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 gure below may be used to select the appropriate waypoint circle when creating the
route.
5
10
15
20
25
30
2 3 4 5 6 7 8 9 10 11 12 13
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.
Sailing with the autopilot
Several sailing parameter should be dened before entering Wind or WindNav mode.
These parameters are described in the separate installation manual.
Wind vane steering
The WIND mode is only available if the system has been set up for sailboat in the Autopilot
Installation menu.
Before the WIND mode is started it must be veried that valid input from wind transducer
is available.
Initiate wind steering as follows;
1. Switch the Autopilot to AUTO mode
2. Adjust the boat heading until wind angle is according to the angle you want to maintain
3. Press the OP40 MENU key, and select Wind
Arrival circles
arrival circle,
radius in 1/100 nm
Boat speed in knots
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