USCG Exam PracticeVisual piloting — three-bearing fixes, danger bearings
Which statement correctly distinguishes a running fix from a fix?
- A. A running fix uses two simultaneous bearings to two different objects
- B. A running fix is more accurate than a fix from simultaneous LOPs
- ✓ A running fix is obtained by advancing an earlier LOP along the DR track to the time of a later observationCorrect
- D. A running fix requires a minimum of three lines of position
Why C is correct
Bowditch Ch. 7 §702 states that in a running fix the first LOP is advanced along the DR track to the time of the second observation, and that it is less accurate than a fix from simultaneous LOPs.
Cited:Bowditch Ch. 7 §702