Simrad AP21 and AP22 Autopilots
100 20220596G
4.33 Sea Trial
The Sea-trial menu can only be accessed if the Dockside Settings
are done and confirmed. It is also recommended that the
Interface Setup be performed prior to Seatrial settings.
The following are the seatrial settings:
• Rudder zero adjust (To tell the autopilot the precise midships
position of the rudder)
• Compass calibration (To automatically compensate for
onboard magnetic Deviation)
• Compass Offset (To offset the final compass heading readout)
• Automatic tuning (An optional method of determining the
steering parameters)
Advance through the IM until the following display is presented:
INSTALLATION
Seatrial
Confirm by rotating the course dial Clockwise.
Rudder zero adjust
Set rudder
zero
P02
The 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.