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The ''Black Swan'' class and Modified ''Black Swan'' class were two classes of sloop of the Royal Navy and Royal Indian Navy. Twelve ''Black Swan''s were launched between 1939 and 1943, including four for the Royal Indian Navy; twenty-five Modified ''Black Swan''s were launched between 1942 and 1945, including two for the Royal Indian Navy; several other ships were cancelled. ==History== Like corvettes, sloops of that period were specialised convoy-defence vessels, except that sloops were larger, faster, possessed much superior anti-aircraft fire control via the Fuze Keeping Clock and a heavy armament of high angle 4 inch guns while retaining excellent anti-submarine capability. They were designed to have a longer range than a destroyer at the expense of a lower top speed, while remaining capable of outrunning surfaced Type VII and Type IX U-boats. In World War II, ''Black Swan''-class sloops sank 29 U-boats. The most famous sloop commander was Captain Frederic John Walker. His sloop became one of the most successful submarine hunters, taking part in the sinking of eleven U-boats. After the war, sloops continued in service with the Royal Navy, Egyptian Navy, Indian Navy, Pakistan Navy and the West German Navy. In April 1949, was attacked on the Yangtze River by the Communist People's Liberation Army. Also, several ''Black Swan'' sloops fought in the Korean War. 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「Black Swan-class sloop」の詳細全文を読む スポンサード リンク
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