Simrad AP26 and AP27 Autopilots
26 20222147A
Spiral-turn
The spiral turn feature may also be used for circling fish or when
searching a particular object on the seabed.
Spiral-turn makes the boat turn in a spiral with a decreasing or
increasing rate of turn. The user decides whether the spiral-turn
should be made to Port or Starboard.
Ensure that the Spiral-turn pattern has been selected under the
User Set-up menu. Refer to Turn Pattern select on page 45.
To enter Spiral turn mode:
Press the TURN/DODGE/INFO button repeatedly until
SPIRAL is flashing in the display.
Boat turning starboard
The initial rate of turn can be adjusted before the turn
is initiated. Increasing the ROT yields to a smaller
circle and vice versa. Adjustable range is 10 to
600°/min.
The autopilot will continue on the set course until
you press either the PORT or STBD button to select
the direction in which to make the spiral turn. If you
do not press PORT or STBD within 1 minute, the
autopilot will return to AUTO mode and stay on
course.
Select “Increase” to move outwards in the spiral and
“Decrease” to move inwards. Higher number gives a
wider spiral. When Constant 0 is selected the boat
will turn in a circle. Range 0-10.
Increase 1 Increase 5 Decrease 1 Decrease 5
To exit spiral-turn mode, press any of the mode buttons. When
pressing the AUTO button, the new set course is shown in the
upper portion of the display.
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