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A sailor keeps watch aboard USS George H.W. Bush.. Watchkeeping or watchstanding is the assignment of sailors to specific roles on a ship to operate it continuously. These assignments, also known at sea as watches, are constantly active as they are considered essential to the safe operation of the vessel and also allow the ship to respond to emergencies and other situations quickly.
A dog watch is a work shift, also known as a "watch", in a maritime watch system that is half the length of a standard watch period. This is typically formed by splitting a single four-hour watch period between 16:00 and 20:00 (4 pm and 8 pm) to form two two-hour dog watches, with the "first" dog watch from 16:00 to 18:00 (4 pm to 6 pm) and the "second" or "last" dog watch from 18:00 to 20:00 ...
Bell from RMS Titanic An underwater archaeologist with the Lighthouse Archaeological Maritime Program in St. Augustine, Florida, recording the ship's bell discovered on the 18th-century Storm Wreck. A ship's bell is a bell on a ship that is used for the indication of time as well as other traditional functions. The bell itself is usually made ...
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". [1] An AB may work as a watchstander, a day worker, or a combination of these roles.
The rank and seniority of the helmsman may vary: on small vessels such as fishing vessels and yachts, the functions of the helmsman are combined with that of the skipper; on larger vessels, there is a separate officer of the watch who is responsible for the safe navigation of the ship and gives orders to the helmsman, who physically steers the ...
A Bridge Navigational Watch Alarm System, abbreviated BNWAS, is an automatic system which sounds an alarm if the watch officer on the bridge of a ship falls asleep, becomes otherwise incapacitated, or is absent for too long a time. The BNWAS is automatically engaged when the ship's autopilot is activated. [1]
The rank of boatswain is the oldest rank in the Royal Navy, and its origins can be traced back to the year 1040. [2] In that year, when five English ports began furnishing warships to King Edward the Confessor in exchange for certain privileges, they also furnished crews whose officers were the master, boatswain, carpenter, and cook. [3]
Watch sandglasses were used on ships to measure watch times, typically in half-hour periods. The helmsman [ 2 ] [ 3 ] or ship's page [ 24 ] were the crewmen responsible for turning the watch sandglass, thus supplying the time to be registered on the ship's log; watch measurement began with the sun reaching its highest point—its zenith —at ...