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USS Tigrone (AGSS 419)
U.S. Navy
USS Tigrone (AGSS-419) was a Tench-class submarine of the United States Navy, commissioned in May 1945. Initially serving in the closing months of World War II, Tigrone conducted one war patrol, during which she rescued Allied aviators and performed lifeguard duties off the coast of Japan. After the war, she was used for training and later converted to an auxiliary research submarine (AGSS), supporting sonar and anti-submarine warfare development during the Cold War. Decommissioned in 1975, Tigrone was one of the last operational World War II–era submarines in the U.S. Navy.