OICNW Task 1.6.C

Compass deviation

MMA Method

In order to satisfy NVIC 12-14 Task 1.6.C , MMA students must:

NVIC Method

See NVIC method.

STCW Competence Knowledge, Understanding, and Proficiency

Plan and conduct a passage and determine position

OICNW-A1.06 Compass – magnetic and gyro

Knowledge of the principles of magnetic and gyro-compasses

Condition Behavior Standard

On a vessel or in a navigation laboratory, when asked to describe deviation,

the candidate describes deviation.


The candidate’s description includes:

  1. Cause of permanent deviation aboard ship;

  2. Induced causes of deviation aboard ship; and

  3. An explanation of why deviation changes over time, location, heading, loaded condition; and onboard equipment location.