Simrad AP28 Operator's Manual page 28

Zigzag-turns
To enter zigzag-turn mode:
TURN
The course change can be set before the turn is initiated
(2-70°).
Press either the or key to select the direction in
which to make the first course change and start.
While sailing in a zigzag pattern you can alter the course
change, leg distance, and the main course. An arrow
shows the direction of the next course change.
MENU
28 | Operation