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USS ''Illinois'' (BB-7) was a pre-dreadnought battleship built for the United States Navy. She was the lead ship of the , and was the second ship of the U.S. Navy to be named for the 21st state. Her keel was laid in February 1897 at the Newport News Shipbuilding & Dry Dock Company, and she was launched in October 1898. She was commissioned in September 1901. The ship was armed with a main battery of four guns and she had a top speed of . ''Illinois'' served with the European Squadron from 1902 to 1903, and with the North Atlantic Fleet until 1907, by which time it had been renamed the Atlantic Fleet. During this time, she accidentally collided with two other battleships. From December 1907 to February 1909, she circumnavigated the globe with the Great White Fleet. From November 1912, the ship was used as a training ship. She was lent to the state of New York in 1919 for use as a training vessel for the New York State Militia. The ship was converted into a floating armory in 1924 as a result of the Washington Naval Treaty, and it was under this guise that she served for the next thirty years. In January 1941 she was renamed ''Prairie State'' and reclassified as IX-15 so that the name could be given to , a projected . ''Prairie State'' was ultimately sold for scrap in 1956. ==Description== (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 eight coal-fired fire-tube boilers, generating a top speed of . As built, she was fitted with heavy military masts, but these were replaced by cage masts in 1909. She had a crew of 536 officers and enlisted men, which increased to 690–713. She was armed with a main battery of four /35 guns in two twin gun turrets on the centerline, one forward and aft. The secondary battery consisted of fourteen /40 guns, which were placed in casemates in the hull. For close-range defense against torpedo boats, she carried sixteen 6-pounder guns mounted in casemates along the side of the hull and six 1-pounder guns. As was standard for capital ships of the period, ''Illinois'' carried four torpedo tubes in deck mounted launchers. ''Illinois''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 of armor plating on their exposed sides. Armor that was 6 in thick protected the secondary battery. 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 Illinois (BB-7)」の詳細全文を読む スポンサード リンク
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