Compass Error

Definition

The total angular difference between compass north and true north — the combined result of magnetic variation (Earth’s field) and deviation (ship’s own magnetism)

Context for Indian Seafarers

Understanding Compass Error is essential for DG Shipping examinations and practical shipboard operations. This term appears in MEO Class 4 oral exams, 2nd Mate FG assessments, and Function-wise competency tests.

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