The USS Trout (SS-202) was a Tambor-class submarine constructed for the United States Navy, with her keel laid on August 28, 1939, at the Portsmouth Navy Yard in Kittery, Maine. She was launched on May 21, 1940, and commissioned on November 15, 1940, under the command of Lieutenant Commander Frank Wesley Fenno, Jr. The vessel was designed as a submarine capable of extended patrols and offensive operations in the Pacific theater during World War II. Physically, as a Tambor-class submarine, Trout featured the typical characteristics of her class, including a length of approximately 312 feet 12 inches (95.2 meters), a beam of around 27 feet 3 inches (8.3 meters), and a draft of roughly 15 feet 3 inches (4.6 meters). She was armed with torpedo tubes—likely 10 21-inch torpedo tubes—allowing her to launch torpedoes against enemy shipping. Her construction included a conning tower integrated into her hull, which was later modified during her modernization overhaul to reduce silhouette and improve radar capabilities. Trout’s service history was marked by extensive combat patrols in the Pacific from 1941 until her presumed loss in April 1944. She played a significant role in wartime operations, sinking 12 enemy ships totaling 37,144 tons as recorded by JANAC. Notable actions included delivering ammunition to Corregidor, evacuating gold and silver from the Philippines, and engaging Japanese shipping in waters around Midway, Truk, and the South China Sea. She received multiple commendations, including 11 battle stars and three Presidential Unit Citations, reflecting her valor and effectiveness. Her patrols involved aggressive torpedo attacks, surface actions, and evasion from depth charge attacks. During her final patrol in February 1944, Trout was involved in an attack on Japanese convoys, damaging and sinking several vessels, including the Sakito Maru. She was last reported to have been attacked by Japanese destroyers on April 7, 1944, and was declared presumed lost with all hands on April 7, 1944. Her loss marked the end of a distinguished wartime career, and she remains a notable example of the submarine warfare conducted by the U.S. Navy during World War II.

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