Simrad AP25 Marine Instruments User Manual


 
Configuration and setup
20221495F 115
Select Seatrial by
pressing the STBD
button and confirm by
rotating the course knob
clock-wise.
Set Rudder zero
(Not applicable when configured for Virtual feedback)
This adjustment should be made in calm sea and side forces from
wind or current should be avoided.
Bring the boat up to cruising speed, and head directly into the
wind.
If the boat has twin engines, synchronize the engine RPM's.
Set the trim tabs and stabilizers to have no effect on the boats
heading.
Steer the boat manually on a steady course.
Confirm the rudder ZERO position by rotating the course
knob clockwise.
Press STBD to proceed to next menu item.
Minimum rudder
Some vessels may have a tendency of not responding to small
rudder commands around the “course keeping” position because
of a small rudder, a rudder deadband or whirls/disturbance of the
water-stream passing the rudder.