USCG Exam PracticeThree-bearing fix and cocked-hat triangle
When three simultaneous lines of position to well-separated charted objects are plotted and they do not intersect at a single point, the small triangle formed is called:
- A. A running fix triangle
- B. A danger bearing envelope
- ✓ A cocked hatCorrect
- D. A DR error polygon
Why C is correct
Bowditch Ch. 7 §705 states that three LOPs from a three-bearing fix rarely cross at a single point; the small triangle they form is called the cocked hat.
Cited:Bowditch Ch. 7 §705