You are underway on course 017°T at a speed of 14.2 knots. You sight a buoy bearing 025°T at a radar range of 3.7 miles at 1947. If you change course at 1953, what is the course to steer to leave the buoy abeam to starboard at 0.1 mile?

Correct Answer: Option C — 027°T

Calculate the distance traveled between 1947 and 1953 (6 minutes at 14.2 knots = 1.42 miles). Use the relative motion triangle to determine the new course. By plotting the vessel's position and the target buoy, the required course to achieve the 0.1-mile abeam distance is 027T.