Your vessel is on a course of 272°T at 15 knots. At 2113 a light bears 245.5°T, and at 2120 the light bears 227°T. At what time and at what distance off will your vessel be when abeam of the light?

Correct Answer: Option D — 2127, 1.8 miles

Using the running fix method, the distance run between bearings is 1.75 miles. Applying the sine rule for the triangle formed by the vessel's track and the light, the distance off at the second bearing is 1.8 miles, with the abeam time calculated at 2127.