Sperry Marine Visionmaster FT ECDIS, Руководство пользователя

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Basic Operation of ECDIS ECDIS User Guide
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Note that Custom Symbol will only be enabled if an outline definition for
own ship has been defined in the Configuration tool by entering line
segments, which are defined as x,y coordinates for the start and end point
of each segment. If no custom symbol has been defined then this symbol
will be unavailable for display.
The custom symbol is displayed in addition to heading line and beam line.
Ship's Symbol Colours
The colour of the ship's symbol and heading line/beam line is shown as
white when the Day/Night mode is set to Day Black or darker. If the mode
is set to Day Bright ship's symbol and heading line/beam line will appear as
black.
Faults in Heading and Position Data affecting Own Ship Symbol
If the position data becomes invalid, ship's outline or circle symbol are
shown in orange and chart data becomes unavailable for display. The
heading line and beam line remain in white (if in Day Black or darker).
If the heading data becomes invalid, ownship's symbol and course vector
are displayed in orange, but ship’s heading line is not displayed and only
North Up Presentation Mode is available. Chart data remains displayed.
Own Ship Vector
The own ship vector symbol is a line indicating ship’s direction and speed.
The end of the line is shown with a double arrowhead when in ground
stabilisation mode, and a single arrowhead when in water stabilisation
mode. For a description of the stabilisation modes see Sensor Data
Display.
The vector line begins at own ship’s CCRP and is drawn with a length
corresponding to the distance on the chart display that own ship will cover,
given its current speed, in the vector time chosen, see Vector Modes.
When in ground stabilised mode, the vector line is drawn to reflect the COG
shown on the sensor data display. When in water stabilised mode, the
vector line is drawn to reflect the course through the water based on the
current heading shown on the sensor data display.