NVIC 12-14 Task 1.6.A

Plan and conduct a passage and determine position

OICNW-A1.06 Compass – magnetic and gyro

Knowledge of the principles of magnetic and gyro-compasses

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

the candidate describes variation.

The candidate’s description includes:

1. Comparing the locations of the geographic and magnetic poles; and

2. Explaining why an annual change correction is needed.