Simrad NSO evo3S MPU Operator's Manual page 111

The turn rate is identical to Turn rate setting.
C-turn
Steers the vessel in a circle.
Turn variable:
• Rate of turn. Increasing the value makes the vessel turn a smaller circle.
Spiral
Makes the vessel turn in a spiral with a decreasing or increasing radius.
Turn variables:
• Initial radius
• Change/turn. If this value is set to zero, the boat will turn in a circle. Negative values
indicate decreasing radius while positive values indicate increasing radius
Zigzag
Steers the vessel in a zigzag pattern.
Turn variables:
• Course change
• Leg distance
Square
Steers the vessel in a square pattern, doing 90° course changes.
Turn variable:
• Leg distance
S-turn
Makes the vessel yaw around the main heading. When activated, the autopilot is switched to
S-turns mode.
Turn variables:
• Course change
• Turn radius
Depth contour tracking
Makes the autopilot follow a depth contour.
Ú Note:
DCT turn pattern is only available if the system has a valid depth input.
Warning:
Do not use the DCT turn pattern unless the seabed is suitable.
Do not use it in rocky waters where the depth is varying significantly over a
small area.
Ú Note:
If depth data is lost during DCT the autopilot will automatically switch to auto
mode.
It is recommended to turn on the AP Depth Data Missing alarm when using DCT. When
this alarm is activated an alarm will be raised if the depth data is lost during DCT.
Outboard autopilot| NSO evo3S MPU Operator Manual
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