Ship's Magnetic Compass - Dry and Wet Compass with their care

A magnetic compass is a compulsory part of the shipborne navigational equipment. This is in addition to the gyro compass

What is a magnetic compass and how does it work?

Cavitation - Propeller Phenomena - Cause, Types, Effects & Avoidance

The History of the Compass - Dalvey

The Mighty Compass - Sail Magazine

What is the fluid in a magnetic compass? - Quora

Ship's Magnetic Compass - Dry and Wet Compass with their care, maintenance and bubble removal

What is a magnetic compass and how does it work?

Rule 26 - Fishing vessels

Ship's Magnetic Compass Explanation & Sketches - Oways Online