While on a course of 349°T, a light bears...

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Question 1 of 2066636ee928f7522a1c519494

While on a course of 349°T, a light bears 13° on your starboard bow at a distance of 10.8 miles. What course should you steer to pass 2.5 miles abeam of the light, leaving it to starboard?

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Question 1 of 20

66636ee928f7522a1c519494

While on a course of 349°T, a light bears 13° on your starboard bow at a distance of 10.8 miles. What course should you steer to pass 2.5 miles abeam of the light, leaving it to starboard?

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🔍 Key Concepts

• Relative bearing vs. true bearing (how to convert a light 13° on the starboard bow to a true bearing using the ship’s heading 349°T) • Basic right‑triangle / distance‑off geometry on a navigation plot (abeam distance vs. range and track line) • Finding a new course to make good a required closest point of approach (CPA) to a fixed object

💭 Think About

• First, sketch your present course line (349°T) and plot the light at 10.8 miles on a relative bearing 13° to starboard. What is the true bearing of the light from your vessel now? • Next, mark the point on the chart where you would be abeam of the light at 2.5 miles to starboard (i.e., 90° off your track). From your current position, what course line would pass that point while keeping the light to starboard? • Compare the direction (more north? more west? more east?) of each choice with the course line you’ve drawn from your present position to that CPA point. Which answers can you rule out based on the geometry of your sketch?

✅ Before You Answer

• Be sure you are converting relative bearing to true bearing correctly: relative bearing is measured from the bow, clockwise 0°–360°. • Confirm you understand ‘2.5 miles abeam to starboard’ means the light is 90° to your right side from your track at CPA, not ahead or astern. • Check whether the new course should be to the right or left of 349°T based on where the light lies now and where you want it to be at the closest point.

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Question 1 of 2066636ee928f7522a1c519494

While on a course of 349°T, a light bears 13° on your starboard bow at a distance of 10.8 miles. What course should you steer to pass 2.5 miles abeam of the light, leaving it to starboard?

Back

Question 1 of 20

66636ee928f7522a1c519494

While on a course of 349°T, a light bears 13° on your starboard bow at a distance of 10.8 miles. What course should you steer to pass 2.5 miles abeam of the light, leaving it to starboard?

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

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