Your vessel is on a course of 221°T at 15 knots. At 0319 a light bears 198.5°T, and at 0353 the light bears 176°T. At what time and distance off will your vessel be when abeam of the light?

Question

Your vessel is on a course of 221&deg;T at 15 knots. At 0319 a light bears 198.5&deg;T, and at 0353 the light bears 176&deg;T. At what time and distance off will your vessel be when abeam of the light?

Accepted Answer

Option A: 0417, 6.0 miles. Applying standard piloting principles for running fixes and special angle cases (doubling the angle on the bow), time to abeam equals the time interval between observations. Computations determine abeam time at 0417 with a distance off of 6.0 miles.

Your vessel is on a course of 221&deg;T at 15 knots. At 0319 a light bears 198.5&deg;T, and at 0353 the light bears 176&deg;T. At what time and distance off will your vessel be when abeam of the light?

Your vessel is on a course of 221°T at 15 knots. At 0319 a light bears 198.5°T, and at 0353 the light bears 176°T. At what time and distance off will your vessel be when abeam of the light?