Sperry Marine VISIONMASTER FT ECDIS-E, Руководство пользователя, Страница: 234 / 425

Navigation Tools ECDIS-E User Guide
5-38 65934012
Ground Stabilised Vectors
The default setting for ground stabilised vectors is Ownship vector
selected, see Own Ship Symbols . To turn predicted vector on tick the
Predicted Vector check box. When predicted vector is selected the
ownship vector check box is automatically de-selected.
The default presentation, set at commissioning, is not to allow
Ownship Vector and Predicted Vector to be displayed
simultaneously. Although the option of simultaneous display may
be selected from the Configuration tool, this setting is NOT in
accordance with IEC 62388.
Predicted Vector
The Predicted vector tool is used to indicate where own ship will go based
on current speed, course, and rate of turn. Predicted vector is NOT
intended to assess risk of collision.
Predicted vector is drawn either as a straight line
or an arc from own ship's CCRP. If own ship is
currently turning, a radius based on the selected
Rate of Turn sensor and the current ground
stabilised course and speed is drawn. If ownship
is not turning, a straight line is drawn.
The length of the predicted vector is based on the
True Vector time setting (up to 60 minutes)
see Vector Modes. Dots are drawn on the
predicted vector line, the length between each dot is based on the Vector
Tick Mark interval time.
Target vectors and ownship vector can be water stabilised or ground
stabilised, but the predicted vector is always ground stabilised. If the
system is in water stabilised mode ship's vector is drawn along the heading
line, in addition to the predicted vector.
A warning ` Predicted Vector Mismatch ' is raised if the current speed is
water stabilised when the predicted vector is displayed.
To turn off predicted vector and return to ownship vector untick the
Predicted vector check box.