Steering with EMRI Trackpilot •
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• 375
Collision avoidance manoeuvre during automatic route steering
Often the route steering is interrupted by a collision avoidance manoeuvre, but there are also several other reasons to
interrupt the route steering.
There are several possibilities to set the collision avoidance or any other manoeuvre:
• Use override tiller, direct rudder pump operation push-buttons or non follow up rudder control.
• Use follow up rudder control
• Use Track pilot COURSE CONTROL
• Use Track pilot RADIUS CONTROL
• Use Track pilot Program Track Turn
• Use a radar (available with some selected radar display models)
To use any of above trackpilot modes push the desired mode and follow normal instructions. See "Manual steering
operations" on page 365.
Now the route steering is disabled until the GO TO WAYPOINT or GO TO TRACK pushbutton is pressed again.
Note that for going back to route steering the ship heading must point to the next waypoint, otherwise an alarm is
given.
Some selected radar models have three different possibilities of manoeuvre:
• Using an EBL and defining a new course
• Using a trial manoeuvre in manual trial mode
• Using a trial manoeuvre in automatic trial mode
EBL mode
• Select Program Track Turn from the Track pilot panel.
• Press CURVED EBL ON/OFF pushbutton of the radar. (If curved ebl is not displayed)
• Verify the correct turning radius and if necessary set the new value by means of RADIUS INCR. Or RADIUS
DECR. Push-button of the radar.
• Move the EBL of the radar on the new intended course.
• Press ENTER NEW COURSE pushbutton of the radar.
• the systems performs the turn.
• In order to go back to route steering, steer the ship pointing to the next waypoint and press GO TO WAYPOINT
or GO TO TRACK pushbutton of the Track pilot panel.
Trial manoeuvre in manual mode
This mode is used whenever the calculation of dangerous targets are required for finding a new safe course. This can
be used before acknowledgement of a new course in route steering.
• Verify correct CPA/TCA setting of the radar.
• Set desired new course on the TRIAL COURSE thumb wheel of the radar.
• Set MANUAL/ AUTOMATIC trial of the radar in MANUAL mode.
• Select Program Track Turn from the Track pilot panel.
• Press TRIAL EXECUTE pushbutton of the radar.
• If the new course is safe, keep TRIAL EXECUTE of the radar pressed and press simultaneously ENTER NEW
COURSE pushbutton of the radar.
• the system performs the turn.
• In order to go back to route steering use the same logic as on EBL steering.
Trial manoeuvre in automatic trial mode
This is used only in the collision avoidance mode. This is useful only if there are some targets to be detected as a
dangerous target. (Below CPA / TCA limits)
• Set MANUAL / AUTOMATIC trial of the radar in AUTOMATIC mode.
• Select PORT or STARBOARD manoeuvre of the radar.
• Select Program Track Turn from the Track pilot panel.
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