Your vessel is on a course of 107°T at 16 knots. At 0403 a light bears 129.5°T, and at 0426 the light bears 152°T. At what time and at what distance off will your vessel be when abeam of the light?

Correct Answer: Option B — 0442, 4.3 miles

Applying standard navigation problem solutions for a special case of the Bowditch method (doubling the angle on the bow), the running time of 23 minutes from 0403 to 0426 equates to 23 minutes to abeam (0442) at 4.3 miles.