You are steering 287°T, and a light is picked up dead ahead at a distance of 19.4 miles at 0419. You change course to pass the light 4 miles off abeam to starboard. If you are making 13 knots, what is your ETA at the position 4 miles off the light?

Correct Answer: Option D — 0547

Calculate the distance to the abeam point using the right triangle formed by the initial distance (19.4 nm) and the passing distance (4 nm). The distance to run is 18.98 nm. At 13 knots, the transit time is 88 minutes, resulting in an ETA of 0547.