Simrad AP26 and AP27 Autopilots
76 20222147A
Use the STBD button to select an
item and the course knob to select
the unit.
Available units are:
Wind Speed: Knots (kt) or
meter/second (m/s)
Sea temperature:
Fahrenheit (°F) or Celsius (°C)
Depth: Meter (m) or feet (ft)
Exit the Display units menu by pressing STBD button to proceed
to the Sea trial menu, or press STBY to return to normal
autopilot operation.
4.6 Sea Trial
WARNING ! The Sea Trial must always be performed in open waters at
a safe distance from other traffic.
The seatrial settings are:
• Rudder zero adjust (To tell the autopilot the precise midships
position of the rudder)
• Minimum rudder
• Compass calibration (To automatically compensate for
onboard magnetic interference)
• Compass Offset (To compensate for a fixed offset (A-error) in
the final compass heading readout)
• Wind Offset (To compensate for a fixed mechanical offset of
the Wind vane if installed)
• Wind Damping (To avoid flickering on the wind display)
• Depth offset (To compensate for the distance between the
depth transducer and the surface if required)
• Automatic tuning (A method of determining the steering
parameters)
• Transition speed (the boat speed at which you want to
automatically change steering parameters)