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1.3.3.4. Principle rules for labeling DR plots
The DR line – direction and speed along a course line should be written along that line. Direction – C – indicating the true course in degrees (3 digits) – should be placed above the course line. Speed – S – knots labeled below the course line Symbol for a fix is a small circle surrounding a small dot, and the time is written horizontally close nearby. Half circle with dot on a straight segment of a course line. Semi circle without dot – change of direction. A DR position shall normally be plotted every hour A DR position shall be plotted of the time of every course change A DR position shall be plotted at the time of every speed change |
Last modified: Saturday, 7 April 2012, 6:15 AM