Your vessel is on a course of 144°T at 20 knots. At 0022 a light bears 117.5°T, and at 0035 the light bears 099°T. At what time and at what distance off will your vessel be when abeam of the light?

Question

Your vessel is on a course of 144&deg;T at 20 knots. At 0022 a light bears 117.5&deg;T, and at 0035 the light bears 099&deg;T. At what time and at what distance off will your vessel be when abeam of the light?

Accepted Answer

Option D: 0048, 4.3 miles. Use the running fix method. The change in bearing is 18.5°. Calculate the time to run the distance between bearings. The time to reach the abeam position is 13 minutes after the second bearing. Using the speed of 20 knots, the distance off when abeam is calculated as 4.3 miles.

Your vessel is on a course of 144&deg;T at 20 knots. At 0022 a light bears 117.5&deg;T, and at 0035 the light bears 099&deg;T. At what time and at what distance off will your vessel be when abeam of the light?

Your vessel is on a course of 144°T at 20 knots. At 0022 a light bears 117.5°T, and at 0035 the light bears 099°T. At what time and at what distance off will your vessel be when abeam of the light?