The boatswain aboard a modern merchant ship stands cargo watch as freight is lowered into an open hatch.
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General | |
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Other names | Bosun Petty Officer Chief rate |
Department | Deck department |
Licensed | No |
Requirements | Typically, able seaman certificate |
Watchstanding | |
Watch (at sea) | On smaller vessels (varies) |
Watch (in port) | On smaller vessels (varies) |
A boatswain (/ˈboʊsən/ BOH-sən, formerly and dialectally also /ˈboʊtsweɪn/ BOHT-swayn), bo's'n, bos'n, or bosun, also known as a Petty Officer or a qualified member of the deck department, is the seniormost rate of the deck department and is responsible for the components of a ship's hull. The boatswain supervises the other members of the ship's deck department, and typically is not a watchstander, except on vessels with small crews. Additional duties vary depending upon ship, crew, and circumstances.
The word boatswain has been in the English language since approximately 1450. It is derived from late Old English batswegen, from bat (boat) concatenated with Old Norse sveinn (), meaning a young man, apprentice, a follower, retainer or servant. Directly translated to modern Norwegian it would be båtsvenn, while the actual crew title in Norwegian is båtsmann ("boats-man"). While the phonetic spelling bosun is reported as having been observed since 1868, this latter spelling was used in Shakespeare's The Tempest written in 1611, and as Bos'n in later editions.