USCG Exam PracticeRunning fix from a single object
While transiting a coastal passage with only one charted landmark visible, you take a bearing of 045°T at 1000 and a second bearing of 090°T at 1020. Your vessel has been making 6 knots on course 000°T. To plot the running fix, you advance the first LOP by what distance?
- A. 6.0 nautical miles
- B. 3.0 nautical miles
- ✓ 2.0 nautical milesCorrect
- D. 1.0 nautical mile
Why C is correct
Distance run equals speed multiplied by elapsed time: 6 knots × (20/60) hours = 2.0 nautical miles. The first LOP is advanced 2.0 nm along the DR track to the time of the second bearing. (Bowditch Ch. 7 §708, Ch. 8 §801)