USCG Exam PracticeThree-bearing fix and cocked-hat triangle
A navigator obtains a range and bearing to a charted target using marine radar. This information alone is sufficient to establish:
- A. A running fix requiring one additional LOP
- ✓ A direct fixCorrect
- C. Only a single LOP, because radar bearing accuracy is insufficient for a fix
- D. A DR position advanced from the last known fix
Why B is correct
Marine radar provides both range and bearing to a target simultaneously. Range and bearing to a single charted target together constitute a direct fix without requiring additional LOPs. Bowditch Ch. 13 §1301.
Cited:Bowditch Ch. 13 §1301