Sperry Marine VISIONMASTER FT ECDIS-E, User Manual

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ECDIS-E User Guide Navigation Tools
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Predicted Outlines
Predicted Ship
The predicted ship indicates a series of predicted position and heading
samples of own ship based on current speed,
course, and rate of turn.
Predicted ship is drawn as a series of true scale
own ship symbols, shown as thin orange
outlines displayed along the length of the ship
vector. The true scale outlines are drawn
regardless of range scale.
The spacing between each symbol is equal to
the Vector Tick Marks Interval setting. The
number of ship symbols drawn is equal to the vector time (see Vector
Modes) divided by the tick mark interval setting, rounded down to the
nearest whole number.
If the vector tick marks are set too high, the predicted ship outline
will be spaced far apart and may not be visible on the display
depending on scale and ship speed.
Predicted ship will be displayed regardless of whether the display setting is
in predicted vector, predicted path or COG vector. When predicted vector is
enabled the location of each predicted ship CCRP is shown as a small dot
on the vector line.
If the system is in water stabilised mode and predicted vector/path is
switched off, the predicted ship outlines continue to follow the ground
stabilised vector path.
Predicted Path
Predicted Path is used to indicate the
area that the ship will pass through
based on current speed, course, and
rate of turn.
The predicted path are two thick orange
lines originating at the inside fore corner
and the outside aft corner of own ship, if the ship is turning the lines are
shown as arced. A true scale ship is drawn at the end of the predicted path.
Fore and aft are relative to the direction that own ship is moving
and do not necessarily relate to bow and stern.