You are steaming on a course of 215°T at 14 knots. At 1841 you observe a lighthouse bearing 178°T. At 1904 the same lighthouse bears 156°T. What is your distance off at the second bearing?

Question

You are steaming on a course of 215&deg;T at 14 knots. At 1841 you observe a lighthouse bearing 178&deg;T. At 1904 the same lighthouse bears 156&deg;T. What is your distance off at the second bearing?

Accepted Answer

Option B: 8.7 miles. This is a running fix problem. Calculate the change in bearing (22°) and the elapsed time (23 minutes). Using the distance run (5.36 miles) and the relative bearings, apply the formula for distance off at the second bearing. The resulting distance off the lighthouse is 8.7 nautical miles.

You are steaming on a course of 215&deg;T at 14 knots. At 1841 you observe a lighthouse bearing 178&deg;T. At 1904 the same lighthouse bears 156&deg;T. What is your distance off at the second bearing?

You are steaming on a course of 215°T at 14 knots. At 1841 you observe a lighthouse bearing 178°T. At 1904 the same lighthouse bears 156°T. What is your distance off at the second bearing?