USCG Exam PracticeCourse to steer to compensate for current
At what minimum frequency must a DR position be plotted when operating in pilot waters, according to standard DR practice?
- A. Once every hour
- B. Only at each course or speed change
- ✓ More often than once per hourCorrect
- D. Only when a fix cannot be obtained
Why C is correct
In pilot waters, DR positions must be plotted more often than the standard minimum of once per hour. A DR position is also required at every course change, speed change, and at the time of each fix.
Cited:Bowditch Ch. 8 §801