You are steaming on a course of 253°T at 14 knots. At 2329 you observe a lighthouse bearing 282°T. At 2345 the lighthouse bears 300°T. What is your distance off at the second bearing?

Question

You are steaming on a course of 253&deg;T at 14 knots. At 2329 you observe a lighthouse bearing 282&deg;T. At 2345 the lighthouse bears 300&deg;T. What is your distance off at the second bearing?

Accepted Answer

Option B: 5.9 miles. Using the running fix formula, the distance run between bearings is 3.73 miles. Applying the sine rule for the triangle formed by the vessel's track and the light, the distance off at the second bearing is 5.9 miles, adhering to standard USCG navigation problem-solving protocols.

You are steaming on a course of 253&deg;T at 14 knots. At 2329 you observe a lighthouse bearing 282&deg;T. At 2345 the lighthouse bears 300&deg;T. What is your distance off at the second bearing?

You are steaming on a course of 253°T at 14 knots. At 2329 you observe a lighthouse bearing 282°T. At 2345 the lighthouse bears 300°T. What is your distance off at the second bearing?