You are underway on course 241°T at a speed of 18.2 knots. You sight a daymark bearing 241°T at a radar range of 3.9 miles at 1006. If you change course at 1009, what is the course to steer to leave the daymark abeam to starboard at 1.0 mile?

Correct Answer: Option C — 222°T

At 18.2 knots, the vessel travels 0.91 miles in 3 minutes. Using the initial radar range and bearing, calculate the relative motion required to achieve a 1.0-mile CPA to starboard. Plotting the triangle of velocities confirms 222°T is the required heading to clear the daymark.