USCG Exam PracticeThree-bearing fix and cocked-hat triangle
A danger bearing labeled 'NLT 047°T' is plotted on the chart from a lighthouse tangent to an off-lying reef. As the vessel approaches the lighthouse, the observed bearing is 043°T. What does this indicate?
- ✓ The vessel has crossed to the dangerous side of the danger bearingCorrect
- B. The vessel is in safe water because the bearing is less than 047°T
- C. The vessel is exactly on the danger bearing and should maintain this heading
- D. The danger bearing is no longer valid because the range has decreased
Why A is correct
An NLT (not less than) danger bearing requires the observed bearing to remain at or above 047°T to stay in safe water. An observed bearing of 043°T is less than 047°T, meaning the vessel has moved to the dangerous side of the line. (Bowditch Ch. 7 §706)
Cited:Bowditch Ch. 7 §706