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南达科他级是美国海军在三年造舰计划中推出的一款主力作战舰型,是与日本八八舰队对抗的中坚力量。它具备强大的火力,完美的防御和相对较缓慢的航速。该级设计正常排水量43200吨、满载排水量47000吨。主尺度:长201．3米,宽31.72米。安装12门16英寸火炮,分别放置于4个3联装炮塔内,16门单管6英寸副炮,4门单管3英寸高射炮,2具鱼雷发射管。主装甲厚度6-13英寸,炮塔装甲厚度9-18英寸,司令塔装甲厚度16英寸。4轴推进,输出功率60000万马力,最大航速23节,续航力10000英里／10节。编制人员1200人。南达科他级计划建造6艘,最后因《华盛顿条约》的签定而被取消,没有1艘完工(具体见下表)。
South Dakota is the United States Navy’s three-year shipbuilding plan launched in a main battleship, is the backbone of the Japanese eight-eight fleet confrontation. It has a strong firepower, perfect defense and relatively slow speed. The level of design normal drainage 43200 tons, full load displacement of 47000 tons. The main scale: 201.3 meters long, 31.72 meters wide. Installed 12 16-inch guns, were placed in four 3-gun turret, 16 single-tube 6-inch auxiliary gun, 4 single-tube 3-inch anti-aircraft gun, 2 torpedo tubes. The main armor thickness of 6-13 inches, turret armor thickness of 9-18 inches, the command tower armor thickness of 16 inches. 4-axis propulsion, output 600 million horsepower, the maximum speed of 23 knots, endurance of 10,000 miles / 10 knots. 1200 staff preparation. South Dakota plans to build six vessels, and finally canceled because of the “Washington Treaty”, there is no one completed (see the table below).