South Dakota-class battleship (1920)
Cancelled dreadnought battleship class of the United States Navy / From Wikipedia, the free encyclopedia
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The first South Dakota class was a group of six battleships that were laid down in 1920 for the U.S. Navy, but were never completed; designed to achieve 23 knots (43 km/h; 26 mph), they represented an attempt to catch up with the increasing fleet speeds of its main rivals, the British Royal Navy and Imperial Japanese Navy.
Artist's concept of the South Dakota class
|Name||South Dakota class|
|Operators||United States Navy|
|Preceded by||Colorado class|
|Succeeded by||North Carolina class|
|Cost||$21,000,000 (cost limit)|
|Beam||106 ft (32.3 m)|
|Draft||33 ft (10.1 m)|
|Propulsion||4 × propeller shafts; 4 × turbo-electric generators|
|Speed||23 knots (43 km/h; 26 mph)|
|Range||8,000 nmi (15,000 km; 9,200 mi) at 10 knots (19 km/h; 12 mph)|
|Complement||137 officers, 1404 enlisted men, 75 marines|
The South Dakotas were authorized in 1917, but work was postponed so that the U.S. Navy could incorporate information gained from the Battle of Jutland, fought in mid-1916, in their design. Work was further postponed to give destroyers and other small fighting vessels priority as they were needed urgently to fight German U-boats in the North Atlantic. Construction started only in 1920. As the Washington Naval Treaty of 1922 both restricted the total battleship tonnage allowed the U.S. Navy, and limited individual ship size to 35,000 long tons (36,000 t), construction was halted in early 1922. The unfinished hulls were scrapped the following year, the guns were transferred to the U.S. Army and their boilers and armor were used to modernize older battleships.