At 0930, you are in position LAT 37°00.3’N...

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Question 1 of 2066636eea28f7522a1c51a9a3

At 0930, you are in position LAT 37°00.3’N LONG 76°13.6’W. If you are making good 284°T at 10.0 knots, when is the latest you can make the turn towards Norfolk and still remain in the federal project (dredged/improved) channel disregarding advance and leeway?

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Question 1 of 20

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🔍 Key Concepts

• Use the Speed = Distance / Time relationship to convert the remaining distance you can travel in the channel into minutes of time at 10.0 knots • How to identify the limits of the federal project (dredged) channel on the chart (dashed/magenta limits, project depth notes, etc.) • How to plot a latest safe turning point so that the new course line toward Norfolk stays inside those channel limits

💭 Think About

• From your 0930 position, how far can you continue on 284°T before your track would carry you outside the federal project channel if you did NOT turn? • If you draw the course line from different possible turning points toward Norfolk, at what approximate point does that new track just touch (but not cross) the channel boundary? • Once you know that distance from your 0930 position to the latest safe turning point, how many minutes does it take to travel that distance at 10.0 knots?

✅ Before You Answer

• Confirm you are using nautical miles when measuring distance on the chart and converting to time at 10.0 knots • Make sure the new course from the turning point toward Norfolk remains entirely inside the dredged channel limits (do not let the line cross outside the project boundaries) • Double-check your time calculation using 1 NM = 6 minutes at 10 knots as a quick reasonableness check before choosing among the answer options

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