USCG Exam PracticeVisual piloting — three-bearing fixes, danger bearings
When simultaneous LOPs from multiple objects are not available, the navigator may obtain a position by advancing the first LOP along the DR track to the time of the second observation. This position is called a:
- A. fix
- B. danger bearing
- ✓ running fixCorrect
- D. doubling-the-angle solution
Why C is correct
Bowditch Ch. 7 §702 defines a running fix as a fix obtained when LOPs cannot be taken simultaneously. The first LOP is advanced along the DR track to the time of the second observation. It is inherently less accurate than a simultaneous fix.
Cited:Bowditch Ch. 7 §702