HNLMS Zwaardvisch (S814) was the lead vessel of the Royal Netherlands Navy's Zwaardvisch-class submarines, based on the British T class. Originally ordered as HMS Talent (P322) and built by Vickers-Armstrongs in Barrow, she was laid down on October 13, 1942, and launched on July 17, 1943. However, before her commissioning into the Royal Navy, she was transferred to the Netherlands on March 23, 1943, and commissioned into Dutch service on November 23, 1943, under the name Zwaardvisch, meaning "Swordfish." The submarine measured 276 feet 6 inches (84.28 meters) in length, with a beam of 25 feet 6 inches (7.77 meters). Her draught was 12 feet 9 inches (3.89 meters) forward and 14 feet 7 inches (4.45 meters) aft. She displaced 1,290 tons when surfaced and 1,560 tons submerged. Zwaardvisch was powered by twin 2,500 horsepower diesel engines and twin 1,450 horsepower electric motors, enabling her to reach speeds of 15.5 knots on the surface and 9 knots submerged. Her operational range was 4,500 nautical miles at 11 knots, and she could dive to depths of 300 feet (91 meters). The vessel had a complement of 61 personnel. Her armament included six internal 21-inch torpedo tubes located forward, two external forward-facing torpedo tubes, two external amidships rear-facing tubes, and one external rear-facing tube, carrying six reload torpedoes. She was also equipped with a 4-inch (100 mm) deck gun and three anti-aircraft machine guns. Zwaardvisch served primarily during World War II, conducting patrols in the Atlantic, off Norway, and later in the Pacific theater after transfer to the British Far East Fleet. Notably, she participated in attacks on Japanese vessels, sinking several ships including the Japanese guard boat Koei Maru and the Japanese minelayer Itsukushima. A significant achievement was her sinking of the German U-168 on October 6, 1944, with a spread of torpedoes, after which she rescued survivors. She also damaged other Japanese vessels and was involved in combat actions around Java, the South China Sea, and the Lombok Strait. After the war, she had a relatively quiet postwar career, including a voyage to the Dutch West Indies in 1947. Renamed Zwaardvis in 1950, she was decommissioned on December 11, 1962, and sold for scrap in 1963. Her service record marks her as a notable vessel in Dutch naval history, with distinguished wartime activity in multiple theaters.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.