483. You are enroute to assist vessel A. Vessel A is underway at 4.5 knots on course 233°T, and bears 264°T at 68 miles from you. What is the course to steer and running time at 13 knots to intercept vessel A?

To intercept a vessel, ensure both vessels remain on the same line of bearing by matching their perpendicular velocities relative to that line. Calculate the required course by determining the angle needed to achieve this, then use the closing speed to determine the intercept time.