Chapter 1 VisionMaster Ship’s Manual
Ownship Display Settings Technical Specification
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The parallel cursor bearing can be true or relative. In True Bearing the parallel
cursor is azimuth stabilised (i.e. maintains a constant orientation with respect
to north). In Relative Bearing the parallel cursor is unstabilised (i.e. maintains
a constant orientation with respect to ship's heading).
7.19.5 Ownship Display Settings
7.19.5.1 Beam Line
The beam line length defaults to 10mm (minimum), and can be set up to
99.9mm (maximum).
7.19.5.2 Predicted Vector
Predicted vector enables a vector arc with a radius computed from current
speed, rate of turn and stabilisation mode to be drawn from own ship's
CCRP. The vector arc is drawn up to six minutes out with a dot indicating
each minute.
7.19.5.3 Vector Tick Marks
Tick marks along own ship vector can be displayed at one minute intervals,
with every sixth tick mark shown as double thickness.
7.19.6 Next Turn EBL
Next Turn EBL is data transferred from an external Voyage Management
System (VMS), which can then be represented graphically in the video circle.
A valid compass input is required to display the Next Turn EBL graphics. If
the heading is unusable then the graphics will not be displayed.
The system uses the following VMS information to display the Next Turn EBL:
• Bearing of initial line, degrees with respect to north
• Length of initial line, in NM (can be zero if initial line is not to be drawn)
• Radius of arc, in NM
• Bearing of final line, degrees with respect to north
• Display status of Next Turn EBL, on or off
• Position of origin of Next Turn EBL, in NM fore/aft and port/ starboard,
with respect to the centre of the ship.
The final line is always drawn to the circumference of the video circle.
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