Your vessel is on a course of 255°T, at 14 knots. At 2126 a lighthouse is sighted dead ahead at a distance of 11 miles. You change course at this time to pass the lighthouse 3 miles abeam to port. What will be your ETA at this position off the lighthouse?

Correct Answer: Option C — 2211

The distance to the abeam point is the square root of (11 squared minus 3 squared), which is 10.58 miles. At 14 knots, the time required is 10.58/14 multiplied by 60, equaling 45 minutes. Adding 45 minutes to the initial time of 2126 results in an ETA of 2211.