USCG Exam PracticeDead reckoning — DR plot maintenance
To construct an estimated position from a DR position, the navigator lays off ______.
- A. the vessel's leeway angle and speed made good
- B. a bearing and distance to the nearest charted aid
- C. the course and distance run since the last fix
- ✓ the current's set and drift for the elapsed timeCorrect
Why D is correct
The EP is derived by applying a current vector — set and drift for the elapsed time — to the DR position. Leeway, bearings to aids, and course/distance run are not the EP construction method.
Cited:Bowditch Ch. 8 §803