System information

Setup at installation | 79
2 Speed Over Ground (SOG) from the GPS/chart
plotter.
See also page 13.
Range Change per step Default Units
OFF - 30 1 6 knots
Automatic tuning
Autotune is a feature that automatically sets the most
important steering parameters (Rudder and Counter
Rudder) by taking the boat through a number of S-turns.
The scaling factors of the parameters are also set
automatically as a function of the boat type selection
performed in the Dockside menu.
Automatic tuning is a procedure that is not
required for the
AP24 to function as it is preset with steering parameters
that should steer most boats in the 30 - 50 foot range.
Recommended speed during Automatic tuning
should not
exceed 10 knots. It should be performed in calm or
moderate sea conditions, preferably when steering East
or West.
For displacement boats use a speed that is approximately
half the normal cruising speed (i.e. if cruising speed is 10
knots, perform the Autotune at about 5 knots).
The parameter values calculated during Autotune
becomes the HI parameters. The LO parameters are
automatically set to 66% of the HI.
After the Autotune has been completed the rudder must
be controlled manually, as the autopilot has returned to
STBY mode.