-28-
PRO
PILOT
725 INSTALLATION & SERVICING MANUAL
Configuring
Your
Propilot
725
CONFIGURING YOUR PROPILOT 725
Because
no
two
vessels
are
quite
the
same,
your
autopilot
will
need
to
be
configured
for
the
characteristics
of
your
boat.
This
is
done
initially
when
the
system
is
installed
but
you
may
be
able
to
fine
tune
it
later.
The
Propilot
725
has
default
settings
for
three
types
of
boat,
Planing,
Semi-displacement
and
Displacement.
For each of
these boat types there is a standard configuration
preprogrammed into the autopilot's memory.
Each configuration has three sets of sea state values called
Pilot A, Pilot B and Pilot C which enable the autopilot to be
tuned for differing speeds and sea conditions. The Helmsman
can then choose between the three settings.
Select the configuration (boat type) most suited to your
vessel, then fine tune the individual Pilot A and B settings as
you become familiar with the autopilot.
THE SETTINGS EXPLAINED
Counter Rudder
At
the
end
of
a
large
course
change
the
amount
of
rudder
is
reduced
as
the
vessel
approaches
the
new
heading
to
C/R--03
prevent
the
vessel
from
overshooting.
This
may
even
result
in
opposite
helm
being
applied
for
a
short
time.
The rate at
which the reduction in the amount of rudder occurs is known
as Counter Rudder.
If this is set too high the vessel will not settle on to the new
heading quickly enough. If the Counter Rudder is set too low
the vessel will overshoot and the pilot will have to correct
accordingly, possibly causing the vessel to oscillate from side
to side, before settling to the new heading.
This setting will have a greater effect on heavier displacement
vessels but must obviously be customised according to the
characteristics of individual craft. Adjust to give approximately
10° of overshoot for a 90° change of course.
The range is from 00 (No Counter Rudder) to 20 (Maximum
Counter Rudder). The setting can be set at different levels for
each choice of Pilot A, B or C.
