USS Massachusetts (BB-59), known as "Big Mamie" to her crew members during World War II, was a battleship of the second South Dakota-class.
Displacement 35,000 tons. length 680.8ft beam 108.2ft draft 29.3ft. Speed 27kn, complement 115 officers, 1,678 men.
Armament 9 x 16in/45 caliber Mark 6 guns. 20 x 5in/38 cal guns, 24 x Bofors 40mm guns 35 x Oerlikon 20mm cannons.
She was the seventh ship of the United States Navy to be named in honor of the sixth state, and one of two ships of her class (along with along with her sister Alabama) to be donated for use as a museum ship. Among the ships armed with 16 inch guns during World War II, Massachusetts stands out because it is believed that she may have fired the US Navy's first and last 16 in (410 mm) shells of the war.
During World War II Massachusetts was initially assigned to duty in the Atlantic Fleet, and exchanged shots with Vichy French battleship Jean Bart during Operation Torch. Transferred to the Pacific fleet in 1943, Massachusetts participated in the Solomon Islands campaign and the Philippines Campaign, and in the latter campaign took part in the Battle of Leyte Gulf. In 1945 she was one of several ships assigned to shell targets on Honshū, one of the Japanese Home Islands.
Following the end of World War II Massachusetts was involved in routine operations off the US coast and eventually reassigned to the Atlantic fleet. Decommissioned in 1947, she was laid up in the reserve fleet at Norfolk Virginia until stricken from the Naval Vessel Register in 1962. In an effort to spare the battleship from scrapping, citizens of her home state pooled resources to raise money for her transfer to the Massachusetts Memorial Committee, and in 1965 the Navy formally donated the battleship to the committee. Massachusetts was towed to Battleship Cove, Fall River, Massachusetts, and formally opened as a museum ship on 14 August 1965. She is one of eight surviving battleships built by the United States.
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