Simrad AP28 Operator's Manual page 25

TURN
Press the or key to select the direction in which to
make the C-turn and start.
The turn rate (ROT) can be adjusted before the turn is
initiated and during the turn. Increasing the turn rate
yields to a smaller circle and vice versa.
MENU
Turn Change per
Range Default Units
parameter step
Rate of turn 10 - 600 5 90 °/min
Operation | 25