HMS Truculent (P315) HMS Truculent (P315) HMS "Truculent" was a British submarine of the third group of the "T" class. She was built as "P315" by Vickers Armstrong, Barrow, and launched on 12 September 1942. "Truculent" was lost following a post-war accident with a Swedish oil tanker in the Thames Estuary in January 1950. "Truculent" spent much of her World War II wartime service in the Pacific Far East, except for a period in early 1943, operating in home waters. Here, she sank the German submarine U-308, which was on her first war patrol, with all hands. She also took part in Operation
History of the oil tanker in the yard at Norfolk, Virginia, Ludwig went to Japan where he introduced the block construction method at the Kure Naval Yard. Here, in 1952, he built the "Petrokure" of 38,000 long tons. That same year, Onassis had a tanker of 45,000 long tons built and also Niarchos had supertankers built. Both Onassis and Niarchos claimed to be the largest independent tanker owner in the world. The "Sinclair Petrolore" that Ludwig had built in 1955, was at 56,000 long tons not only the largest freighter in the world, but also a self-unloading ore-oil carrier, the only one of that type