The USS Illinois (BB-65) was an uncompleted Iowa-class fast battleship of the United States Navy, designed during World War II but never finished. Laid down at the Philadelphia Naval Shipyard on December 6, 1942, her construction was given low priority due to the ongoing war and shifting naval strategies. As an Iowa-class ship, she was intended to be one of the largest and fastest battleships of her time, with a length of 887 feet 3 inches and a beam of 108 feet 2 inches. Her design featured all-welded construction, which aimed to reduce weight and increase strength compared to earlier ships in her class. Illinois was to be powered by four General Electric steam turbines, producing 212,000 shaft horsepower, enabling a top speed of approximately 32.5 knots. Her armament was to include nine 16-inch /50 caliber guns in three triple turrets, with secondary armament consisting of twenty 5-inch /38 caliber dual-purpose guns and a comprehensive anti-aircraft suite of eighty 40mm and forty-nine 20mm autocannons. Her armor protection was substantial, with a main belt up to 12.1 inches thick, main gun turrets with 19.5-inch faces, and a heavily armored conning tower. The ship was initially part of the post-Second Vinson Act expansion but was later considered for conversion into an aircraft carrier, a plan that was ultimately abandoned. Her construction was halted in 1942, and she was about 22% complete when the war ended. She was officially canceled on August 11, 1945, and her incomplete hull remained at the dockyard until she was broken up in September 1958. The ship's bell, inscribed "USS Illinois 1946," now resides at Memorial Stadium at the University of Illinois, where it is used in traditions by the NROTC. Overall, Illinois represents the final chapter of the U.S. Navy's battleship era, never seeing service but embodying the strategic design of the Iowa class.

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