From your 0741 position, you wish to change...

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Question 1 of 2066636eea28f7522a1c51a8e4

From your 0741 position, you wish to change course in order to pass 2.2 miles easterly of Cape Charles Lighted Bell Buoy "14". Your engine speed is now 14.0 knots. You estimate the current to be 240°T at 1.8 knots. What is the true course to steer to make good the desired course?

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Question 1 of 20

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🔍 Key Concepts

• Use a current triangle (vector triangle) combining ship’s speed through the water and the set and drift of the current • Distinguish clearly between course to steer (what you put on the compass) and course made good (the actual track over the ground) • Think about how a current from 240°T will push your vessel relative to the desired track

💭 Think About

• Sketch your desired track past Buoy 14 first. If there were no current, in what direction would you point the ship? • Now add the current vector: from 240°T at 1.8 knots. On your diagram, which way does this push your track relative to the desired line (to the east or to the west)? • To stay on the desired line, do you need to steer into the current or away from it, and by roughly how many degrees compared to the no‑current course?

✅ Before You Answer

• On your vector triangle, the ship’s speed through the water must be 14.0 knots, and the current vector must be 1.8 knots from 240°T • Your resultant (ground track) vector should lie along the desired course line that passes 2.2 miles east of Buoy 14 • Double‑check that the final course to steer is offset in the correct direction relative to the set of the current (you should not be set toward the buoy if you want to pass 2.2 miles east of it)

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