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Waypoint arrival circle

The Arrival radius defines the point at which a turn is initiated when you are navigating a

route.

The arrival circle (1) 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 figure below may be used to select the appropriate waypoint circle when creating the

route.

X axis = Boat speed in knots

Y axis = Arrival circle, radius in 1/100 Nm

Example: With the speed of 20 knots you should use a waypoint circle with radius 0.09 Nm.

Note: The distance between any waypoints in a route must not be smaller than the

radius of the waypoint arrival circle.

WIND mode

Note: The WIND mode is only available if the system has been set up for sailboat in the

Autopilot Commissioning dialog. This mode is not available for NAC-1 autopilot

computers.

Before the WIND mode is started it must be verified 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. Select the mode indication in the autopilot controller to activate the autopilot menu, and

select WIND mode

The set course to steer (CTS) and set wind angle are entered from the compass heading and

the wind transducer at the moment the WIND mode is selected. From that point the

autopilot changes the course to maintain the wind angle as the wind direction may change.

Tacking in WIND mode

Note: The tack function is only available when the system is set up for boat type SAIL in

the Autopilot Commissioning dialog and is not available for NAC-1 autopilot computers

Autopilot | NSS evo2 Operator Manual

Simrad NSS evo2 User Manual

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