One of 52 American submarines now on eternal patrol, the career of the USS Trout came to an unfortunate end. According to the Dictionary of American Fighting Ships,
Pearl Harbor Submarine Base Memorial Park features plaques representing each American submarine lost in World War II.On 8 February, the submarine began her 11th and final war patrol. Trout topped off with fuel at Midway and, on the 16th, headed via a great circle route toward the East China Sea. She was never heard from again. Japanese records indicate that one of their convoys was attacked by a submarine on 29 February 1944 in the patrol area assigned to Trout. The submarine badly damaged one large passenger-cargo ship and sank the 7,126-ton transport Sakito Maru. Possibly one of the convoy's escorts sank the submarine. On 17 April 1944, Trout was declared presumed lost. Trout received 11 battle stars for World War II service and the Presidential Unit Citation for her second, third, and fifth patrols.