The USS Utah (BB-31/AG-16) was a Florida-class dreadnought battleship of the United States Navy, notable for its early service and tragic sinking during the attack on Pearl Harbor. Constructed by the New York Shipbuilding Corporation, she was laid down in March 1909, launched in December of the same year, and commissioned in August 1911. Utah measured approximately 522 feet in length overall, with a beam of 88 feet 3 inches and a draft of 28 feet 6 inches. Displacing around 21,825 long tons as designed, her full load displacement reached approximately 23,033 long tons. Powered by four Parsons steam turbines rated at 28,000 shp and twelve coal-fired Babcock & Wilcox boilers, Utah could achieve a top speed of 20.75 knots and had a cruising range of about 5,776 nautical miles at 10 knots. Her crew complement was approximately 1,001 officers and men. Armed with ten 12-inch/45 Mark 5 guns in five twin turrets, Utah's main battery was complemented by sixteen 5-inch guns and two 21-inch torpedo tubes. Her armor protection included an 11-inch thick main belt and 12-inch thick gun turret faces, designed for robust defense typical of dreadnoughts of her era. Utah played a significant role during her active years, participating in the 1914 Veracruz intervention, where she was among the first US ships to arrive during the Mexican Revolution. During World War I, she served in Irish waters, protecting convoys from German surface threats and acting as flagship of Battleship Division 6. Post-war, she served as a flagship in Europe and participated in numerous goodwill tours and fleet exercises throughout the 1920s and early 1930s. In 1931, Utah was demilitarized and converted into a radio-controlled target ship, designated AG-16, with her armament removed but her turrets retained. She was used extensively for target practice and training, including anti-aircraft gunnery development. During the attack on Pearl Harbor on December 7, 1941, Utah was moored off Ford Island and was one of the ships attacked by Japanese torpedo bombers. She was struck by two torpedoes, which caused her to capsize rapidly, resulting in 58 fatalities. Her wreck remains in Pearl Harbor as a war grave and memorial, with several relics preserved in Utah and memorials erected to honor those lost. The ship's sinking marked a significant moment in naval history and her remains are now part of the Pearl Harbor National Memorial.

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