USCG Exam PracticeEstimated position from current set & drift
Dead reckoning (DR) is best described as which of the following?
- A. Determining position by the intersection of two or more simultaneous lines of position
- B. Determining position by advancing a prior LOP along the DR track to the time of a second observation
- ✓ Determining position by applying course steered and distance run from a known starting pointCorrect
- D. Determining position using the vector sum of course made good and the current vector
Why C is correct
Bowditch Ch. 1 §102 defines dead reckoning as the determination of position by applying course steered and distance run from a known starting point. Option B describes a running fix, and option D describes current vector resolution.
Cited:Bowditch Ch. 1 §102