Quick & Easy Guide to Compass Correction
This guide provides all the information required to determine a ship's compass error, its true course, and how to adjust the compass.
The author describes the cause of compass error: variation, deviation, misalignment, lazy compass, frozen compass, and intermittent deviation. Beginning with the basics of magnetism, he then discuss how to apply compass error to find your true course and how to measure error by taking bearings, inland and offshore.
Captain Reid has designed two quick and easy tools for celestial bearings: a Compass Corrector for bearings on the sun and a Skyclock for bearings on Polaris. Step-by-Step instruction on how to swing ship, set up deviation tables, and adjust compass are also included.
This is an indispensable for every sailor, regardless of size or type of vessel.
Capt. George H. Reid is a licensed U.S. Merchant Marine Officer and president of his own consulting and surveying firm, Harrison Reid & Associates, in Cape Canaveral, Florida. He has written several books om seamanship, in addition to contributing to Knight's Modern Seamanship. His most recent book is Marine Salvage: A Guide for Boaters and Divers, also published by Sheridan House.