At 0811 your vessel's position is 37°04.9'N,...

Question 1 / 2066636eea28f7522a1c51a90a

Question 1 of 2066636eea28f7522a1c51a90a

At 0811 your vessel's position is 37°04.9'N, 75°39.7'W. You are steering a course of 220°T at a speed of 14.0 knots. At what time would you expect the buoys in the northeasterly traffic scheme to line up, if you do not correct for a southwesterly current of 1.8 knots?

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🔍 Key Concepts

• Dead reckoning (DR) position and how to advance it using course, speed, and time • Using Speed = Distance / Time to find how long it takes to travel a specific distance at 14.0 knots • Effect of ignoring current (southwesterly 1.8 knots) on when features visually line up

💭 Think About

• From your 0811 position and course 220°T, think about where the line of bearing will be when the buoys appear in line. What kind of line on the chart does a "line-up" of buoys represent? • Work out how far along your track you must travel (in nautical miles) from your 0811 position until you reach that line, then convert that distance into time at 14.0 knots. • Consider whether ignoring a southwesterly current makes you arrive at the lineup earlier or later, and how that affects which multiple-choice time is reasonable.

✅ Before You Answer

• Confirm you are using true bearings and true course (°T) consistently with the charted line through the buoys. • Double-check your distance measurement along your 220°T track from 0811 to the buoy line (use latitude scale for NM). • Verify your time calculation: Distance (NM) ÷ 14.0 knots = Time (hours), then convert to minutes and add to 0811.

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Question 1 / 2066636eea28f7522a1c51a90a

Question 1 of 2066636eea28f7522a1c51a90a

Back

Question 1 of 20

66636eea28f7522a1c51a90a

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🔍 Key Concepts

💭 Think About

✅ Before You Answer

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