You are enroute to assist vessel A. Vessel A...

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Question 1 of 2066636ee928f7522a1c519676

You are enroute to assist vessel A. Vessel A is underway at 5 knots on course 063°T, and bears 136°T at 78 miles from you. What is the course to steer and running time at 13 knots to intercept vessel A?

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Question 1 of 20

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🔍 Key Concepts

• Relative motion between two moving vessels (intercept problems) • Using speed triangle or vector diagram to find course and time to intercept • Relationship: distance run by each vessel = speed × time

💭 Think About

• How can you represent both your vessel’s motion and vessel A’s motion as vectors starting from the same point? • If you are to meet vessel A at the same point at the same time, what must be true about the time for each vessel’s run? • Once you find the common time, how can you use your own speed to check which distance (and therefore which time option) is reasonable?

✅ Before You Answer

• Be sure you are using true bearings and courses consistently (all relative to true north). • Check that the time to intercept is the same for both vessels: Distance A travels ÷ 5 knots = Distance you travel ÷ 13 knots. • After you pick a time from the choices, verify that the resulting triangle closes (your track, A’s track, and initial line of bearing should form a consistent triangle).

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