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Chapter 3: Advanced Operation
Operating hints
3.3 Adjusting autopilot performance
Changing the response level (AutoSeastate)
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• It is important to ensure that the amount of standing helm is
minimised by careful sail trimming.
• The headsail and mainsail should be reefed a little early rather than
too late.
• In Vane Mode the pilot will react to long-term wind shifts, but will
not correct for short-term changes, such as gusts.
• In gusty and unsteady inshore conditions, it is best to sail a few
degrees further off the wind so that changes in apparent wind
direction can be tolerated.
The response level and rudder gain can be adjusted during normal
operation using a combined key-press. Alternatively, you can set up
these two control displays as default Data Pages (see section 2.5).
The default calibration settings for response and rudder gain (refer to
Dealer Setup) are restored when the system is powered on.
The response level controls the relationship between the autopilot's
course keeping accuracy and the amount of helm/drive activity.
• Response Level 1, AutoSeastate (Automatic Deadband), causes the
autopilot to gradually ignore repetitive movements of the vessel and
only react to true variations in course. This provides the best
compromise between power consumption and course keeping
accuracy, and is the default calibration setting.
• Response Level 2 (Minimum Deadband) provides the tightest
course keeping possible. However, tighter course keeping results in
increased power consumption and drive unit activity.
• Response Level 3 (also Minimum Deadband) provides the tightest
course keeping possible by introducing yaw damping.
The response can be changed at any time. To do so:
1. Press the +1 and -1 keys together momentarily to display the
RESPONSE screen.
2. Press +1 or -1 to change the response level.
3. Wait for 10 seconds, or press disp , to return to the previous
display.
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