Stopping the turn
You can stop the turn from within the turn dialog.
At any time during a turn you can select Autopilot standby in the System Controls dialog
to return to STBY mode and manual steering.
You can also stop a turn by pressing the STBY/AUTO key to return to STBY mode and
manual steering.
Turn variables
The turn steering options, except the C-turn, have settings that you can adjust before you
start a turn and at any time when the boat is in a turn.
U-turn
U-Turn changes the current set heading to be 180° in the opposite direction.
The turn rate is identical to Rate limit settings. This cannot be changed during the turn.
Ú
Note: Refer to the separate NSS evo2 Installation manual for information about Rate limit
settings.
C-turn
Steers the vessel in a circle.
You can adjust the Rate of turn from the turn dialog before the turn is initiated and during
the turn. Increasing the turn rate makes the vessel turn a smaller circle.
Spiral turn
Spiral-turn makes the vessel turn in a spiral with a decreasing or increasing radius. You set the
initial radius before the turn is initiated, and the change per turn during the turn. If the
change per turn is set to zero, the vessel turns in a circle. Negative values indicate decreasing
radius while positive values indicate increasing radius.
Zigzag turns
Steers the vessel in a zigzag pattern.
For navigating in a zigzag pattern, you set the initial heading change before the turn is
started.
During the turn you can alter the main heading, the heading change, and the leg distance.
Square turn
Makes the vessel automatically turn 90° after having travelled a defined leg distance.
At any time during the turn you can change the main heading and the distance of the leg
until the vessel makes a new 90° turn.
Lazy S-turn
Makes the vessel yaw around the main heading.
You set the selected heading change before the turn is started.
During the turn you can alter the main heading, the heading change and the turn radius
from within the turn dialog.
Depth contour tracking, DCT
TM
If the system has Echosounder input, the autopilot can be set to follow a depth contour.
Warning: Do not use this feature unless the seabed is suitable. Do not use
it in rocky waters where the depth is varying significantly over a small area.
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Autopilot | NSS evo2 Operator Manual
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