Question 998Navigation General

70% to pass

You are enroute to assist vessel A. Vessel A is underway at 5.5 knots on course 033°T, and bears 248°T at 64 miles from you. What is the course to steer at 13 knots to intercept vessel A?

A 262°
B 269°
C 276°
D 281°
AI Explanation

The correct answer is A) 262°. To intercept vessel A, you need to determine the course to steer that will allow you to reach the same location as vessel A. Given the information provided, you can use basic trigonometry to calculate the required course. Vessel A is on a course of 033°T and traveling at 5.5 knots. You are 64 miles away on a bearing of 248°T and will be traveling at 13 knots. By applying the law of cosines, the course to steer to intercept vessel A is 262°. The other options are incorrect because they do not represent the optimal course to intercept vessel A based on the provided information.

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Official Resources
USCG Navigation Rules (COLREGS) 33 CFR Navigation Rules USCG National Maritime Center
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