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USS ''Louisiana'' (BB-19) was a of the United States Navy. She was the second member of the class of six pre-dreadnought battleships, and the third ship to carry her name. ''Louisiana'' was laid down in February 1903, launched in August 1904, and commissioned in June 1906. She was a battleship capable of . Her main armament consisted of four guns supported by a mixed secondary battery of and guns. ''Louisiana'' primarily operated along the east coast of the United States and in the Caribbean during her career. In 1908–09, she took part in the world cruise of the Great White Fleet. A pair of trips to European waters took place in 1910 and 1911. From 1913, she began to become involved in the Mexican Revolution, as the US Navy began to send ships to protect American interests in the country. This activity culminated in the US occupation of Veracruz in April 1914. During World War I, ''Louisiana'' was employed as a training ship before serving as a convoy escort in late 1918. After the war ended that year, she was used to ferry American soldiers back from France. With this work completed, she was decommissioned in October 1920 and broken up for scrap at the Philadelphia Navy Yard in 1923. ==Design== (詳細はlong overall and had a beam of and a draft of . She displaced as designed and up to at full load. The ship was powered by two-shaft triple-expansion steam engines rated at and twelve coal-fired Babcock & Wilcox boilers, generating a top speed of . As built, she was fitted with heavy military masts, but these were quickly replaced by lattice masts in 1909. She had a crew of 827 officers and enlisted men, though this increased to 881 and later to 896. The ship was armed with a main battery of four 12 inch /45 Mark 5 guns in two twin gun turrets on the centerline, one forward and aft. The secondary battery consisted of eight /45 guns and twelve /45 guns. The 8-inch guns were mounted in four twin turrets amidships and the 7-inch guns were placed in casemates in the hull. For close-range defense against torpedo boats, she carried twenty 3-inch /50 guns mounted in casemates along the side of the hull and twelve 3-pounder guns. She also carried four 1-pounder guns. As was standard for capital ships of the period, ''Louisiana'' carried four torpedo tubes, submerged in her hull on the broadside. ''Louisiana''s main armored belt was thick over the magazines and the machinery spaces and elsewhere. The main battery gun turrets had thick faces, and the supporting barbettes had the of armor plating. The secondary turrets had of frontal armor. The conning tower had thick sides. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「USS Louisiana (BB-19)」の詳細全文を読む スポンサード リンク
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