Counter rudder
Counter rudder is the amount of rudder used to try to prevent the
boat from yawing around the set course. Higher counter rudder
settings result in more rudder being applied.
The best way of checking the value of the Counter rudder setting is
when making turns.
The following figures illustrate the effects of various Counter Rudder
settings:
1 Counter rudder too low; overshoot response.
2 Counter rudder too high; sluggish and creeping response.
3 Correct setting of counter rudder; ideal response.
Auto trim
This parameter defines how fast the autopilot shall correspond after
having registered a heading error.
The standard value is 40 seconds which should work well on most
boats. Rule of thumb: Set to same value (seconds) as the boat’s
length in feet. On boats operating on VRF, the value should be set
to 20 seconds.
Rate limit
Sets the maximum allowed rate of turn.
The value should be kept at 6.0°/second unless there is a need for
more rapid response in turns.
Minimum rudder
This parameter filters small rudder commands to prevent high
rudder activity.
Some boats may have a tendency to not respond to small rudder
commands around the “course keeping” position because of a small
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Software Setup | GO7 Installation Manual
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