Your vessel is steering 096°T at 17 knots....

Question 1 / 2066636ee928f7522a1c51a656

Question 1 of 2066636ee928f7522a1c51a656

Your vessel is steering 096°T at 17 knots. At 1847 a light bears 057°T, and at 1916 the same light bears 033°T. What will be your distance off abeam?

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Question 1 of 20

66636ee928f7522a1c51a656

Your vessel is steering 096°T at 17 knots. At 1847 a light bears 057°T, and at 1916 the same light bears 033°T. What will be your distance off abeam?

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🔍 Key Concepts

• Relative motion of bearing lines as your vessel moves on a straight course • The relationship between change in true bearing and the distance run to calculate closest point of approach (CPA) or distance abeam • Using basic trigonometry or the 4-bearing/2-bearing running fix idea to find distance off when a mark is abeam

💭 Think About

• Draw your vessel’s track and plot the two bearings from the same position line. How does the bearing change as you move along your course? • Think about the angle between your course (096°T) and each bearing to the light. How can that angle help you relate distance run to distance off? • Once you find the distance run between the two bearings, how can you use the angles to that light to form a right triangle and solve for the distance abeam?

✅ Before You Answer

• Compute the time run between the two observations and convert it to hours before finding distance run at 17 knots • Check the angle on the bow for each bearing (difference between course and bearing) and be sure you’re using the correct angle inside the triangle • Verify that the final distance off abeam is less than the distance run between the two bearings, and that your selected answer is consistent with the geometry of the situation

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Question 1 of 20

Your vessel is steering 096°T at 17 knots. At 1847 a light bears 057°T, and at 1916 the same light bears 033°T. What will be your distance off abeam?

11.4 miles

11.9 miles

9.9 miles

10.7 miles

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Question 1 / 2066636ee928f7522a1c51a656

Question 1 of 2066636ee928f7522a1c51a656

Your vessel is steering 096°T at 17 knots. At 1847 a light bears 057°T, and at 1916 the same light bears 033°T. What will be your distance off abeam?

Back

Question 1 of 20

66636ee928f7522a1c51a656

Your vessel is steering 096°T at 17 knots. At 1847 a light bears 057°T, and at 1916 the same light bears 033°T. What will be your distance off abeam?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed