Calibration of a marine gyrocompass is crucial to ensure accurate heading data. Over time, the gyrocompass may drift or accumulate errors, affecting its performance. Proper calibration aligns the compass to true north, ensuring that the vessel’s navigation system can provide precise heading information. This process involves adjustments to correct the errors caused by environmental factors or mechanical wear. Regular calibration is important for vessels that rely on gyrocompasses for navigation, particularly for ships operating in remote or harsh conditions where accuracy is essential for safety.