Configuration and Setup
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Automatic tuning
Automatic tuning is a feature that automatically sets the two
main steering parameters (Rudder and Counter Rudder) by
taking the boat through a number of S-turns.
Automatic tuning is an optional procedure that is not required for
the AP25 to function. The AP25 is preset with steering
parameters that should steer most boats in the 30 - 80 foot range.
It is, however, recommended to perform an automatic tuning as
part of the sea trial.
Recommended speed during Automatic tuning varies with the
type of boat, but should not exceed 10 knots (6-8 knots is
recommended). It should be performed in calm or moderate sea
conditions.
Note ! Automatic tuning should not be performed at planing speed or in
following seas!
The parameter values calculated during Automatic tuning
becomes the HI parameters. The LO parameters are
automatically set to 66% of the HI.
It also is recommended to perform the Automatic tuning steering
East or West, as this will yield the best balanced parameters.
Note ! After the Automatic tuning has been completed the rudder must
be controlled manually, as the autopilot has returned to STBY
mode.
WARNING ! The Automatic tuning function will take control of the boat
and perform a number of S-turns. It must always be
performed in open waters at a safe distance from other
traffic. The Automatic tuning function may take from 1 to 2
minutes to complete. To stop the Automatic tuning,
press the STBY button.
Activate the Automatic
tuning, by rotating the course
knob clockwise. The display
will flash “Automatic tuning”.
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