Delaware Class Battleship

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Delaware Class Battleship

The Delaware-class battleships of the United States Navy were the second class of American dreadnoughts. With this class, the 16,000-ton limit imposed on capital ships by the United States Congress was waived, which allowed designers at the Navy's Bureau of Construction and Repair to correct what they considered flaws in the preceding South Carolina class and produce ships not only more powerful but also more effective and rounded overall. Launched in 1909, these ships became the first in U.S. naval history to exceed 20,000 tons.

The Delawares carried a battery of ten 12"/45 caliber Mark 5 guns in five turrets, an increase of two guns over the South Carolinas . With these ships, the U.S. Navy readopted a full-fledged medium-caliber weapon for anti-torpedo boat defense. While the 5-inch (127 mm) gun was smaller than that used by other major navies, this would, with few exceptions, become the standard medium-gun caliber for the U.S. Navy for the better part of the 20th century. As for speed, the Delawares were capable of 21 knots (39 km/h), a significant improvement over the earlier class's 18.5 knots (34 km/h). This would become the speed for all American standard-type battleships. Propulsion systems were mixed; while North Dakota was fitted with steam turbines, Delaware retained triple-expansion engines. U.S. turbines at this point did not give great advantages in output or speed over triple-expansion systems, as the engineering difficulties faced by turbine manufacturers there were still extremely great.

These ships saw varied service during their careers. As part of Battleship Division Nine of the U.S. Atlantic Fleet, Delaware was assigned to the British Grand Fleet after America's entry into World War I, where she escorted convoys and participated in the blockade of the German High Seas Fleet. In contrast, North Dakota remained on the American coast throughout the war, due in part to worries about her troublesome turbine engines. Post-war, they conducted training cruises with the US Atlantic Fleet. In 1924, Delaware was broken up for scrap metal in accordance with the Washington Naval Treaty of 1922. North Dakota survived until 1931, when she too was scrapped, under the terms of the 1930 London Naval Treaty.

Read more about Delaware Class Battleship:  Design

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