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h1000 pilot
calibration
Page 63
seatrial calibration
manual rudder gain
1. Steer the boat onto a suitable heading and allow time for the boat to settle on this course.
2. Select Compass Mode by repeatedly pressing the MODE key.
3. Press the ON key on any h1000 pilot display or hand-held controller.
4. The autopilot will now steer the boat on the selected heading.
5. At a speed not exceeding 15 knots
, make course changes of at least 120
q
, by multiple presses of
the 10
q
course change buttons on any h1000 pilot display or hand-held controller.
6. Observe and estimate the rate of turn. It should be approximately 7
q
to 8
q
per second. (To estimate
the rate of turn the display is updated every 1 second, therefore the heading display should jump
in 7
q
to 8
q
steps).
7. Observe the performance of the pilot when changing course.
8. If the rudder gain value is too low, the autopilot will understeer, causing sluggish steering. If the
rudder gain value is too high, the autopilot will oversteer, causing erratic steering and excessive
rudder movements. In high-speed boats, this could cause a jerky response and dangerous rates
of turn.
9. Adjust the rudder gain value for best steering performance. Use the minimum value necessary to
maintain a good response to course changes and course keeping without excessive rudder
movement.
setting the rudder gain manually
The autopilot must be disengaged and
Sea Trial
calibration
mode selected to adjust the rudder gain value.
rudder gain value table
Boat Type Default Value Typical Values
Sail Boats 2.00 1.50 to 2.20
Power Boats 0.80 0.70 to 1.00
Note: the default value is selected by setting boat type and rudder drive type during calibration.