Instruction manual

Simrad AP26 and AP27 Autopilots
116 20221586F
• Transition speed (the speed at which you want a power boat to
change steering parameters)
• Init NAV (to set the response you prefer when steering onto a
track in NAV mode)
• Set thrust direction (optional, only if interfaced to a thruster)
• Drive output adjust (See
Final sea trial page 134.)
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.
By turning the Minimum Rudder function ‘On’, it may improve
the course keeping performance on some boats, but will increase
the rudder activity.