When your vessel has settled on its new
course, you will likely wish to make fine
course adjustments using the Red and Green
Keys.
2. First estimate or chart the difference in
degrees between your new course and your
present course. Press either the Red Key or
the Green Key until the course to steer
shown on the display is the same as your
new course. Press the Pilot Key. Your
vessel will turn to the new course.
The speed of the turn will be governed by the
Autopilot. The Autopilot will turn the vessel at
5º per second if it is set to the “slow” boat
speed setting.
3. A
third way to make large course changes
is to press the SBY/OFF Key. The Autopilot
will go to STANDBY MODE. Press the Red or
Green Key to enter POWER STEER MODE and
make your course change. When your
heading is correct, press the Pilot Key. The
SP-70 or SP-80 will steer along the new
course.
4. Press
the SBY/OFF Key. The Autopilot
will go to STANDBY MODE. You will be able to
use the steering wheel to set the new course.
Press the Pilot Key again, and your Autopilot
will steer your boat along your new course.
Setting Fast Speed Rudder &
Counter- Rudder Response.
Press the Pilot Key to steer a course by
compass. Advance the throttle so that your
vessel is moving at cruising speed. With the
autopilot ON, press the Set Key. For a five
second interval the display will show either
[SLOU] (slow) or [FASt] (fast). This is the
rudder response speed setting that your
autopilot is currently using. If the display is
reading [SLOU], press the Green Key during
the five second interval to change the display
to the [FASt] (fast) setting. Your vessel is
now using the fast boat speed Rudder
Response settings.
The vessel may move back and forth
across the desired course line.
This movement occurs when your Rudder
sensitivity is too high or your Counter-Rudder
sensitivity is set too low. The autopilot is
over-correcting for course errors (see
diagram on page 67).
To decrease the Rudder sensitivity:
Press the Set Key. The display will show
[FASt] for five seconds. During this five
second interval, press the Set Key again and
the Autopilot will show the Rudder sensitivity
setting.
Press the Red Key once to decrease the
Rudder sensitivity setting by one step.
If your vessel continues to wander across the
course line, repeat the above instructions
until the Autopilot steers your boat in a
straight line.
To increase the Counter-Rudder
sensitivity:
Press the Set Key. The display will show
[FASt] for five seconds. During this five
second interval, press the Set Key two more
times to display the Counter-Rudder
sensitivity setting.
Press the Green Key to increase the
Counter-Rudder sensitivity setting by one
step.
Wait for half a minute to let the vessel settle.
To see how straight a course the Autopilot is
steering, watch the wake of your boat behind
you. If this new setting is still not suitable,
repeat the instructions above. Continue until
your vessel is steering well.
If your vessel falls away from the course
line:
The Rudder Response is not sensitive
enough (see diagram on page 67).
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