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3. ARP OPERATION
3-32
11. Roll the wheel to choose the course setting box. Use the wheel to set the
course: Roll the wheel to choose location; push the wheel to set.
12. Roll the wheel to choose the speed setting box. Use the wheel to set the
speed: Roll the wheel to choose location; push the wheel to set.
13. Roll the wheel to choose TRIAL SET. Push the left button or the wheel to
show TRIAL WORK.
The trial maneuver takes place for three minutes with the letter “T” displayed
at the bottom of the screen. If any tracked target is predicted to be on a
collision course with own ship (that is, the target ship comes within preset
CPA/TCPA limits), the target plotting symbol changes to a triangle and
flashes. If this happens, change own ship's trial speed, course or delay time
to obtain a safe maneuver. The trial maneuver is automatically terminated
and the normal radar picture is restored three minutes later.
3.15.3 Terminating a trial maneuver
A trial maneuver is automatically terminated three minutes after start. To
terminate it manually, do the following:
1. Roll the trackball to choose the TRIAL box at the right side of the screen.
2. Push and hold down the left button to show TRIAL OFF.
Note: To disable the trial maneuver function, choose OFF at step 5 in the
procedure in paragraph 3.15.2 and then push the wheel or the left button.