Sperry Marine Visionmaster FT ECDIS, Руководство пользователя

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ECDIS User Guide Navigation Tools
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Trial Manoeuvre
Trial Manoeuvre is a facility that allows the effect of a proposed
manoeuvre, based on rate of turn for own ship, to be displayed, both
graphically and alpha-numerically. This gives the operator the ability to
evaluate the possibility of collisions, by observing the theoretical relative
target vectors that would be produced.
The manoeuvre course and speed can be either ground referenced or
water referenced, depending on the currently selected stabilised mode, see
Sensor Data Display.
However it is recommended for Trial manoeuvres that water speed (STW)
is selected. When current speed is over ground (COG) a warning is given
when the
Manoeuvre On check box is ticked that the trial course, speed
and vectors will be ground referenced.
Adjusting Trial Manoeuvre Parameters
The following parameters can be specified to
define the proposed manoeuvre:

A true course to follow after the
manoeuvre.

A true speed to be maintained during
and after the manoeuvre.

A delay time before the manoeuvre is
to start.

A rate of turn for the manoeuvre.
The ranges and default values for trial manoeuvres are shown in the table
below.
Parameter Ranges Power on Default
Final True Course
0 to 359.9°, in 0.1°
increments
000.0°
Manoeuvre Speed 0.0 kn to 75 kn 15 kn
Time to Turn
0 to 30 minutes in 0.1
minute increments
0.0min
Rate of Turn
1°/min. to maximum set
rate of turn in initialisation Own ship's commissioned
standard rate of turn