USCG Exam PracticeRunning fix from a single object
To construct a running fix from a single object, the navigator advances the first LOP. Along what track is the first LOP advanced?
- A. Along the bearing line of the first observation
- ✓ Along the vessel's DR trackCorrect
- C. Along the course line from the fix preceding the first observation
- D. Perpendicular to the course line by the distance run
Why B is correct
Bowditch Ch. 7 §702 specifies that the first LOP is advanced along the DR track to the time of the second observation. The DR track reflects the vessel's assumed course and speed made good between observations.
Cited:Bowditch Ch. 7 §702