You are steering 163°T, and a light is picked up dead ahead at a distance of 11 miles at 0142. You change course to pass the light 2 miles off abeam to starboard. If you are making 13 knots, what is your ETA at the position 2 miles off the light?

Correct Answer: Option C — 0232

Per Bowditch navigation methods, calculate the new distance to run by forming a right triangle with the initial radar/visual distance and the intended abeam clearance. Dividing the hypotenuse by 13 knots gives the transit duration, resulting in an ETA of 0232.