Simrad NAC-3 - Depth contour tracking (DCT)

Spiral turn
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 turn
Steers the vessel in a zigzag pattern.
• Turn variables:
- Course change (A)
- Leg distance (B)
B A
Square turn
Makes the vessel automatically turn 90° after having travelled a
defined leg distance.
• Turn variable:
- Leg distance
Lazy-S turn
Makes the vessel yaw around the main heading.
• Turn variables:
- Course change (C)
- Turn radius (D)
D
C
Depth contour tracking (DCT)
Makes the autopilot follow a depth contour.
User settings | NAC-2/NAC-3 Commissioning Manual
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