Section 3: Magnetic Compass and Log
Once again, much of this basic work is revision of material already learnt at Day Skipper level but with some added elements eg, you should know not only how to use a deviation card, but also how to make one.
This section comprises the following:
Magnetic compass errors- variation and deviation
Construction of the marine compass
Steering and handbearing compasses
Preparation of the deviation card
Log types and operating characteristics