USSPennsylvania (BB-38) was the lead ship of the Pennsylvania class of super-dreadnought battleships built for the United States Navy in the 1910s. The
name means that it had a bore diameter of 1.1 in (28mm) and barrel caliber of 75 (1.1inches × 75 = 82.5 in (2.1 m)). The gun was designed to replace the
USS Wisconsin (BB-64) is an Iowa-class battleship built for the United States Navy (USN) in the 1940s and is currently a museum ship. Completed in 1944
shells. A second variant, "BB 65B" substituted twelve new 6 in (152 mm) /47 guns in place of the existing twenty 5 in (127 mm)/38 cal guns for their secondary
USS Utah (BB-31/AG-16) was the second of two Florida class dreadnought battleships. The first ship of the United States Navy named after the state of Utah