Navigation Problems USCG Question #969 (Set 29)

You are steaming on a course of 267°T at 22 knots. At 0433 you observe a lighthouse bearing 290°T. At 0452 the lighthouse bears 328°T. What is your distance off at the second bearing?

Official USCG Answer & Rule Citation

Correct Answer: Option B — 4.5 nm

In accordance with standard navigational procedures from Bowditch, determine the distance off at the second bearing by solving the triangle formed by the run between sights and the target's relative bearings. This calculation confirms a distance off of 4.5 nautical miles.

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