What is the purpose of magnetic correctors in Magnetic Compass?

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Asked on August 26, 2021
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The correctors are basically used to correct the errors induced in the magnetic compass due to magnetism. These magnetism errors can be ship induced magnetism and / or permanent magnetism induced in the steel. These are corrected using the corrector magnets.
For ship induced magnetism Quadrantal Spheres and Flinders bars are used.
For permanent magnetism Fore and Aft and Athwartship magnets are used.

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Posted by marinetales
Answered on August 26, 2021