Considerably larger and more powerful than the preceding Colorado class, the South Dakota class was 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.

USS Iowa (BB-53), a 11,410-ton battleship built at Philadelphia, Pennsylvania, was commissioned in June 1897. She operated along the Atlantic seaboard for the rest of that year and into 1898.

艾奥瓦号战列舰（英文：IOWA Battleship [1]，舷号：BB-53），是美国计划建造的一艘战列舰。 该舰在纽波特纽斯造船厂的干船坞建造，于1920年5月17日敷设龙骨。 根据华盛顿条约限制海军军备的条款，美国于1923年8月17日取消了该舰的后续建造。 艾奥瓦号战列舰（舷号：BB-53），是 美国 计划建造的一艘 南达科他级战列舰 的五号舰 [2]。 该舰在纽波特纽斯造船厂的干船坞建造，于1920年5月17日敷设龙骨。 但在1922年2月8日，该舰的建造工作暂停，当时舰体31.8% …

Powerplant: 60,000 horsepower steam turbines with electric drive, producing a 23 knot maximum speed. Armament (Main Battery): Twelve 16"/50 guns in four triple turrets.

2013年10月29日 · USS Iowa BB53: The battleship that almost was. BB53 would have been the third battleship to carry the name of USS Iowa. Her keel was laid but her construction was never finished.

USS IOWA BB53, 1920-1923. Construction of the USS Iowa BB53 began by the Virginia-based News Shipbuilding & Drydock Company in 1920, but with over 30 percent of the BB53 completed, the Navy halted the project in 1923. In accordance with the Washington Naval Treaty of 1922, the Navy scrapped the Iowa BB53 and five other South Dakota class ships.

2017年5月13日 · Authorized on March 4, 1917, the South Dakota -class represented the final set of battleships called for under the Naval Act of 1916. Comprising six vessels, the design in some ways marked a departure from the Standard-type specifications that had been utilized in the preceding Nevada, Pennsylvania, N ew Mexico, Tennessee, and Colorado classes.

construction was suspended on 2/8/1922 when 31.8% of construction was complete. construction was cancelled on 8/17/1923 in accordance with terms of the washington treaty limiting naval armaments.

South Dakota Class Battleship: Displacement: 43,200 tons. Dimensions: 684' (length overall); 106' (maximum beam). Powerplant: 60,000 horsepower steam turbines with electric drive, producing a 23 knot maximum speed. Armament (Main Battery): Twelve 16"/50 guns in four triple turrets.

USS "Iowa" (BB-53) was a "South Dakota"-class battleship, the second United States Navy ship to be named in honor of the 29th state. Her keel was laid down on 17 May 1920 at Newport News Shipbuilding & Drydock Company.