If the gyrocompass error is east, what describes the error and the correction to be made to gyrocompass headings to obtain true headings?
Official USCG Answer & Rule Citation
Correct Answer: Option C — The readings are too low (small numerically) and the amount of the error must be added to the compass to obtain true
When gyro error is East, the compass reads numerically lower than the true heading. To convert a gyro heading to a true heading, you must add the East error. Conversely, if the error were West, the compass would read too high, requiring the error to be subtracted.
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