HMS Truculent (P315) was a British third-group T-class submarine constructed by Vickers-Armstrongs at Barrow, launched on 12 September 1942. As a wartime vessel, she measured approximately 276 feet in length, with a beam of around 26 feet, and was powered by diesel engines for surface running and electric motors for submerged operations. During her service, she sank nine enemy vessels, primarily in the Pacific Far East, although she also operated off the European coast early in 1943, notably sinking the German U-308 in the Norwegian Sea. Her wartime achievements included participation in Operation Source, where she towed the X-class midget submarine X-6 to Norway for attacks on the German battleships Tirpitz, Scharnhorst, and Lützow. She also engaged Japanese shipping, sinking the Yasushima Maru, Mantai, and Harugiku Maru—an "Hell ship" carrying POWs, with significant loss of life. Additionally, she laid mines, damaging a Japanese minelayer, and contributed to anti-ship operations in the Pacific theater. After the war, HMS Truculent returned to the United Kingdom and continued service with the Royal Navy. Her operational history ended tragically on 12 January 1950, when she collided with the Swedish oil tanker Divina outside the Medway. At night, while returning to Sheerness after trials, she was navigating the Thames Estuary with a crew and 18 dockyard workers aboard. A misjudgment led to a collision with Divina, which was carrying a highly combustible cargo. The impact caused Truculent to sink with the loss of 64 men, including those aboard the ferrying workers. Most survivors escaped, but many died in the cold conditions. The sinking prompted the development of the "Truculent Light," a panoramic white light on the submarine's bow to improve visibility and prevent future accidents. Her wreck was salvaged in March 1950, and she was subsequently sold for scrap. The disaster influenced maritime safety regulations and remains a significant event in British naval history.

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