Your vessel is steering 238°T at 11 knots. At 2304 a light bears 176°T, and at 2323 the same light bears 155°T. What will be your distance off abeam?

Correct Answer: Option A — 8.5 miles

Using the Bowditch doubling the angle on the bow principle, the run between bearings is 19 minutes at 11 knots, equaling 3.48 miles. Since the change in bearing is 21 degrees, the distance off abeam is calculated using the formula: Distance = Run / sin(change in bearing), resulting in 8.5 miles.