Basic Operation of Radar
Radar/Chart Radar User Guide
3-42
65900010
Turn Radius
The turn radius figure is generated from the manoeuvre speed and the rate
of turn and is therefore not editable.
Delay Countdown
To start the manoeuvre delay countdown tick the
Timer
check box, the
time value previously entered in the
Time to Turn
field starts to count down
to zero in real time, whether or not Manoeuvre On is enabled.
When the Time to Turn countdown reaches 30 seconds a Manoeuvre
Display warning is displayed.
When the delay countdown reaches zero the
Timer
check box is
automatically unticked.
Displaying the Trial Manoeuvre
Tick the
Manoeuvre On
check box to display the trial manoeuvre.
Whenever
Manoeuvre On
is ticked the display shows a large flashing
T
in
the lower half of the screen.
The manoeuvre vectors are displayed until the manoeuvre is switched off
by unticking the
Manoeuvre On
check
box.
The manoeuvre speed, course, rate of turn, time to turn, vector type and
length can be changed at any time during the trial.
If true (T) vectors are selected, the trial vector shows own ships proposed
true course during the manoeuvre.
The Rate of Turn and the manoeuvre speed determine the radius of the
turn based on data entered. Effects due to tidal stream and leeway are not
taken into account.
If relative (R) vectors are selected, the trial vectors are applied to every
tracked target or activated AIS target, with own ship’s vector suppressed,
and show the course and speed of the targets relative to own ship.
Display of Vectors
Trial manoeuvre vectors are displayed in all presentation modes and all
motion modes when the following conditions are satisfied:
the
Manoeuvre On
check box is ticked.
the heading is valid.
the scale is valid for the display of target synthetics.
Summary of Contents for VisionMaster FT
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