Navigation General · Dead Reckoning
Which statement about DR positions is correct?
- AA new DR is started from each new fix or running fix✓ Correct
- BDR positions are more accurate than estimated positions
- CA DR should only be plotted every 30 minutes
- DCurrent is always included in a DR calculation
Explanation
Navigator practice requires starting a new DR track from every fix or running fix obtained. The DR track is updated whenever a course or speed change occurs and a DR is plotted at regular intervals between fixes.
Authority: Bowditch (Pub. 9), Ch. 7
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