Rudder Limit; Rudder Gain; Counter Rudder - Raymarine autopilot control unit Owner's Handbook Manual

Chapter 7: Adjusting Autopilot Settings

Rudder limit

Use the rudder limit screen to set the limits of autopilot rudder control
just inside the mechanical end stops. This will avoid putting the
steering system under unnecessary load. You should adjust this
setting when commissioning the autopilot (see page 61).
Screen text
RUDDER LIMIT

Rudder gain

This screen determines the default rudder gain setting. Rudder gain is
a measure of how much helm the autopilot will apply to correct
course errors. The higher the setting the more rudder will be applied.
The default rudder gain is set during the initial seatrial:
•
•
You can make temporary changes to this rudder gain value during
normal operation (see page 29).
Screen text
RUDD GAIN

Counter rudder

Counter rudder is the amount of rudder the autopilot applies to try to
prevent the boat from yawing off course. Higher counter rudder
settings result in more rudder being applied.
The default rudder gain is set during the initial seatrial:
•
•
Screen text
COUNT RUD
Range
10° to 40° in 1° steps
Type 150G/400G autopilots will adjust the rudder gain
automatically during the AutoLearn (see page 68)
Type 150/400 and Type 100/300 autopilots will require manual
adjustment of rudder gain (see page 71)
Range
1 to 9
Type 150G/400G autopilots will adjust the counter rudder setting
automatically during the AutoLearn (see page 68)
Type 150/400 and Type 100/300 autopilots will require manual
adjustment of counter rudder (see page 71)
Range
1 to 9
95