You desire to make good a true course of...

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Question 1 of 2066636eea28f7522a1c51b094

You desire to make good a true course of 046°. The variation is 6° E, magnetic compass deviation is 12° W, and the gyrocompass error is 3° W. A northerly wind produces a 5° leeway. What is the course to steer per standard magnetic compass to make good the true course?

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Question 1 of 20

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🔍 Key Concepts

• Compass conversion sequence between true, gyro, magnetic, and compass (use the standard "True-Variation-Magnetic-Deviation-Compass" ladder). • How to apply leeway (caused by a northerly wind) in relation to the desired true course. • The meaning and sign of easterly vs westerly variation, deviation, and gyro error (add or subtract?).

💭 Think About

• Start with the desired true course 046° and carefully step through each conversion: apply leeway, then convert between True, Magnetic, and Compass using the variation and deviation given. • Think about whether a northerly wind will push your vessel to the right (toward higher numbers) or left (toward lower numbers) when you are steering roughly northeast, and therefore whether you must steer more to the right or to the left to make good 046° T. • For variation 6° E and deviation 12° W, recall the memory aids (like "east is least, west is best" or "add west, subtract east") and decide whether you increase or decrease the course value at each step.

✅ Before You Answer

• Before picking an answer, check that you applied leeway in the correct direction relative to the true course. • Verify that you converted using the correct sequence: True ↔ Magnetic ↔ Compass and did not accidentally skip or reverse a step. • Confirm that your final course is labeled correctly as per standard magnetic compass (psc) and that its value is consistent with all applied corrections (signs and magnitudes).

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