106 |
Tracking |
Argus Radar Operator Manual
manoeuvre. With the “Trial Exec” button released the real actual values are displayed. In case
one of them is dangerous, the correspondent label is highlighted in red color.
The Minimum Safety can be set changing the “Minimum CPA” and “Minimum TCPA” values in
the Trail Manoeuvre Menu.
¼
Note:
Those values are the ones used for the minimum safety of the real navigation.
The ship will turn with the new data and after the execution time (this time take into account
the delay that the ship requires to start the evasive manoeuvre or the time necessary to stop
the ship, when the trial speed has been set to 0 knots):
•
Operating in True Motion, own ship vector will be displayed with the trial course, and at the
estimated position, where the manoeuvre ends. Otherwise it is always placed at the Centre
•
All targets and their vectors will be displayed on the PPI at their estimated position, according
to the trial manoeuvre end, thus allowing the situation to be evaluated
•
If any of the tracked targets is dangerous at the trial course, their vectors will flash in red color
and the Danger Target alarm will be visualised in the alarms area
•
The HDG, Course and Speed data displayed in own ship section (“System data area sections”
on page 23), are replaced by the trial speed and course data (during the simulation, until
“Trial Exec” is released)
•
If a set trial course is more than 135° away from the actual one, or the initial speed is 0 or
invalid, the message “WRONG: Trial Not Possible” is visualised in the Wrong Orders Area.
All the vectors will be drawn consequently to the True or Relative vectors presentation chosen.
Automatic trial manoeuvre
The Automatic Trial Manoeuvre is intended to be used in situations, where one or more
targets are potentially dangerous, and own ship must assume a safe course with least possible
alteration from the present one. All targets in tracking are taken into consideration searching
for the safe course. Note that, if no target is in risk of collision and the operator order an Auto-
matic Trial Manoeuvre, the system will confirm the actual course and nothing will change.
The following steps must be performed to operate with the Automatic Trial Manoeuvre:
1.
Press the “Trial Manoeuvre” button (“Tracking menu” on page 101) to open the Trial Ma-
noeuvre Menu (“Trial manoeuvre window - Before the execution - Detail” on page 107).
2.
If the first button on the top left part of the menu is labelled “Trial Manual”, press it to set the
mode to Automatic.
3.
Choose the retained better side to do the manoeuvre (Port or Starboard, the course does not
have to be set).
4.
Set the desired trial speed, placing the cursor on the relative spin box, watching the help line
and using the SKs.
5.
Follow the same procedure to set the desired ROT and the delay to the beginning of the
manoeuvre. For the delay value, take care of the possible delay time own ship needs to reach
the trial speed and to start steering.
6.
Press and hold the “Trial Exec” button and the manoeuvre will be computed.
If, during the manoeuvre, one or more targets are closer than the safe range (if the Trial Ma-
noeuvre gets too close to targets), the manoeuvre will be interrupted and the “Danger Target”
alarm will be shown in the system data area, alarms section (“System data area sections” on
page 23) and the Manoeuvre is not executed.
The following is as using the Manual Trial Manoeuvre:
During the trial manoeuvre the time figure increases and when the trial is completed, the
alarm “Trial Executed” is displayed in the alarms area.
In the lower part of the menu it is possible to check out the values of CPA and TCPA of targets
selected, which, during and at the end of the computing, are the calculated values from the
manoeuvre. With the “Trial Exec” button released, the real actual values are displayed. In case
one of them is dangerous, the corresponding label is highlighted in red color.
The minimum safety can be set changing the “Minimum CPA” and “Minimum TCPA” values
in the Trail Manoeuvre menu (shortcuts to the real values). At the end of the Automatic Trial
Manoeuvre:
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