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The first USS ''Milwaukee'', a double-turreted river monitor, the lead ship of her class, built for the Union Navy during the American Civil War. The ship supported Union forces during the Mobile Campaign as they attacked Confederate fortifications defending the city of Mobile, Alabama in early 1865. She struck a mine in March and sank without loss. Her wreck was raised in 1868 and broken up for scrap that was used in the construction of a bridge in St. Louis, Missouri. ==Description== ''Milwaukee'' was long overall and had a beam of .〔 The ship had a depth of hold of 〔Canney, p. 114〕 and a draft of . She had 970 tons burthen〔 and displaced .〔Chesneau & Kolesnik, p. 123〕 Her crew numbered 138 officers and enlisted men.〔Silverstone, p. 111〕 The ship was powered by two 2-cylinder horizontal non-condensing steam engines, each driving two propellers, using steam generated by seven tubular boilers. The engines were designed to reach a top speed of . ''Milwaukee'' carried of coal.〔 The ship's main armament consisted of four smoothbore, muzzle-loading 11-inch Dahlgren guns mounted in two twin-gun turrets.〔 Her forward turret was designed by James Eads and her rear turret by John Ericsson.〔 Each gun weighed approximately and could fire a shell up to a range of at an elevation of +15°.〔Olmstead, et al, p. 90〕 The cylindrical turrets were protected by eight layers of wrought iron plates. The sides of the hull consisted of three layers of one-inch plates, backed by of pine. The deck was heavily cambered to allow headroom for the crew on such a shallow draft and it consisted of iron plates thick. The pilothouse, positioned behind and above the fore turret, was protected by of armor.〔Canney, pp. 114–16〕 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 Milwaukee (1864)」の詳細全文を読む スポンサード リンク
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