You desire to make good a true course of 329°. The variation is 13° W, magnetic compass deviation is 4°E, and gyrocompass error is 2°W. A southerly wind produces a 1° leeway. What is the course to steer per standard magnetic compass to make the true course good?

Question

You desire to make good a true course of 329&deg;. The variation is 13&deg; W, magnetic compass deviation is 4&deg;E, and gyrocompass error is 2&deg;W. A southerly wind produces a 1&deg; leeway. What is the course to steer per standard magnetic compass to make the true course good?

Accepted Answer

Option C: 337&deg;psc. Working backward from true course 329°: add 13° West variation for magnetic 342°, subtract 4° East deviation for compass 338°. A southerly wind pushes the vessel north, requiring a 1° port adjustment, yielding 337°psc.

You desire to make good a true course of 329&deg;. The variation is 13&deg; W, magnetic compass deviation is 4&deg;E, and gyrocompass error is 2&deg;W. A southerly wind produces a 1&deg; leeway. What is the course to steer per standard magnetic compass to make the true course good?

You desire to make good a true course of 329°. The variation is 13° W, magnetic compass deviation is 4°E, and gyrocompass error is 2°W. A southerly wind produces a 1° leeway. What is the course to steer per standard magnetic compass to make the true course good?