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The United States Navy, United States Coast Guard, and United States National Oceanic and Atmospheric Administration (NOAA) use a hull classification symbol to identify their ships by type and by individual ship within a type. The system is analogous to the pennant number system that the Royal Navy and other European and Commonwealth navies use.
A minesweeper is a small naval warship designed to engage in minesweeping. Using various mechanisms intended to counter the threat posed by naval mines, waterways are kept clear for safe shipping.
USS Goshawk (AM-79), was a Goshawk class minesweeper built in 1919 as the steel-hulled fishing trawler M/V Penobscot by the Foundation (Marine) Co., Savannah, Georgia, for Mr. W. F. Henningsen, Seattle, Washington.
USS Albatross (AM-71) was an Albatross-class minesweeper of the United States Navy during World War II.
USS Stalwart (AMc-105) was an Accentor-class coastal minesweeper acquired by the U.S. Navy for the dangerous task of removing mines from minefields laid in the water to prevent ships from passing.
USS Barbet (AMS-41/YMS-45) was a YMS-1-class auxiliary motor minesweeper acquired by the U.S. Navy for the task of removing mines that had been placed in the water to prevent ships from passing.
USS Courlan (AMS-44/YMS-114) was an YMS-1-class auxiliary motor minesweeper acquired by the U.S. Navy for the task of removing mines that had been placed in the water to prevent ships from passing.
A naval trawler is a vessel built along the lines of a fishing trawler but fitted out for naval purposes. Naval trawlers were widely used during the First and Second World Wars. Fishing trawlers were particularly suited for many naval requirements because they were robust boats designed to work heavy trawls in all types of weather and had large clear working decks. One could create a mine sweeper simply by replacing the trawl with a mine sweep. Adding depth charge racks on the deck, ASDIC below, and a 3-inch (76 mm) or 4-inch (102 mm) gun in the bow equipped the trawler for anti-submarine duties.
BRP Mangyan (AS71) is an auxiliary ship of the Philippine Navy, formerly the freight supply ship U.S. Army FS-524, built for the United States Army during World War II.
The No.1 class auxiliary minesweeper was a class of minesweepwes of the Imperial Japanese Navy (IJN), serving during World War II. 22 vessels were planned and built in 1941–43 under the Maru Rin Programme and the Maru Kyū Programme.
HMAS Medea was an auxiliary minesweeper of the Royal Australian Navy (RAN) between 1942 until 1946. Built in 1912 for the Ocean Steam Ship Co. she was sold to the Straits Steam Ship Co. in 1925. She was requisitioned by the Royal Navy in 1939 and converted into an auxiliary minesweeper and named HMS Circe. She was transferred to the Royal Australian Navy in 1942 and renamed HMAS Medea until she was returned to her owners in 1946. She was sold and was scuttled off Sydney on 20 January 1948.
HMAS Mercedes was an auxiliary minesweeper of the Royal Australian Navy (RAN) between 1942 until 1946. Built in 1913 for the Ocean Steam Ship Co. she was sold to the Straits Steam Ship Co. in 1925. She was requisitioned by the Royal Navy in 1939 and converted into an auxiliary minesweeper and named HMS Medusa. She was transferred to the Royal Australian Navy in 1942 and renamed HMAS Mercedes until she was returned to her owners in 1946. She was sold and was scuttled off Sydney on 23 January 1948.
The Craft of Opportunity Program (COOP) was a Royal Australian Navy (RAN) acquisition program intended to supplement the navy's mine warfare capability with civilian vessels that could be quickly converted into minesweepers. Vessels acquired under COOP were not commissioned into the RAN, and instead operated with the prefix "MSA".
ST Gunundaal was an auxiliary minesweeper operated by the Royal Australian Navy (RAN). Gunundaal was operated commercially as a fishing boat until she was acquired on 8 October 1917 for minesweeping duties during World War I. Gunundaal was returned to her owners in February 1918. She was renamed Gilbert San on 22 March 1928.
Two ships of the Royal Australian Navy have been named Gunundaal.
Two ships have been named Koraaga.
Minesweeper flotillas of the Kriegsmarine were administrative units which grouped German minesweepers together. There were three types of minesweeper flotillas: standard minesweepers, auxiliary minesweepers, and "mine barrage" vessels. Flotilla commanders operated from a shore office, and were usually commanded by an officer ranked as a Korvettenkapitän. All minesweeper flotillas were under the command of the Führer der Minensuchboote which, by 1940, had been divided into three separate offices for activities in the North Sea, Baltic Sea, and off the coast of France.
