Terms & Glossaries of Shipping and Trading
AB (Able Seaman)
An Able Seaman (also AB) is an unlicensed member of the deck department of a merchant ship. An AB may work as a watch-stander, a day worker, or a combination of these roles.
An able seaman (AB) is a seaman and member of the deck department of a merchant ship with more than two years' experience at sea and considered "well acquainted with his duty". An AB may work as a watchstander, a day worker, or a combination of these roles. Once a sufficient amount of sea time is acquired, then the AB can apply to take a series of courses/examinations to become certified as an officer.
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