USCG Exam PracticeLeeway allowance in plotting
A navigational error introduced by the assumption that a vessel has maintained her planned course throughout a passage is best corrected by which practice?
- A. Advancing the DR position by the estimated set and drift
- B. Applying compass deviation corrections at each watch change
- ✓ Checking cumulative errors against fixes whenever possibleCorrect
- D. Reducing speed to allow more frequent position observations
Why C is correct
Bowditch Ch. 23 §2301 identifies the assumption that a vessel has held the planned course as a source of navigational error and states that cumulative errors must be checked against fixes whenever possible.
Cited:Bowditch Ch. 23 §2301