Rocks & mirror
Encyclopedia of Marine and Energy Technology

Deck log, also called Captain Log


A full nautical record of a ship voyage, noted down at the end of each watch by the deck officer on watch. The principal entries are: courses steered; distance run; compass variations, sea and weather conditions; ship position, principal headlands passed; names of lookouts and any unusual position, and any unusual happenings such as fire, collision, and the like.