Alabama in Casco Bay, Maine, circa December 1942
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Class overview | |
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Name | South Dakota class |
Builders | |
Operators | United States Navy |
Preceded by | North Carolina class |
Succeeded by | Iowa class |
Built | 1939–1942 |
In commission | 1942–1947 |
Completed | 4 |
Retired | 4 |
Scrapped | 2 |
Preserved | 2 |
General characteristics | |
Type | Fast battleship |
Displacement | |
Length | |
Beam | 108 ft 2 in (33 m) |
Draft | 36 ft 2 in (11 m) |
Installed power |
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Propulsion | 4 × screws; 4 × geared steam turbines |
Speed | 27.5 knots (50.9 km/h; 31.6 mph) |
Range | 15,000 nmi (28,000 km; 17,000 mi) at 15 knots (28 km/h; 17 mph) |
Complement | 1,793–2,634 |
Sensors and processing systems | |
Armament |
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Armor | |
Aircraft carried | 2 × OS2U Kingfisher floatplanes |
Aviation facilities | 1 × aircraft catapult |
The South Dakota class was a group of four fast battleships built by the United States Navy. They were the second class of battleships to be named after the 40th state; the first were designed in the 1920s and canceled under the terms of the Washington Naval Treaty. Four ships comprised the class: South Dakota, Indiana, Massachusetts, and Alabama. They were designed to the same treaty standard displacement limit of 35,000 long tons (35,600 t) as the preceding North Carolina class and had the same main battery of nine 16"/45 caliber Mark 6 guns in three-gun turrets, but were more compact and better protected. The ships can be visually distinguished from the earlier vessels by their single funnel, compared to twin funnels in the North Carolinas.
Construction began shortly before World War II, with Fiscal Year (FY) 1939 appropriations. Commissioning through the summer of 1942, the four ships served in both the Atlantic, ready to intercept possible German capital ship sorties, and the Pacific, in carrier groups and shore bombardments. All four ships were retired shortly after World War II; South Dakota and Indiana were scrapped in the 1960s, Massachusetts and Alabama were retained as museum ships.