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Shimushu-class escort ship
The were a quartet of ships built for the Imperial Japanese Navy just prior to World War II.
==Background and description==
The Japanese called these ships ''Kaibōkan'', "ocean defence ships", (''Kai'' = sea, ocean, ''Bo'' = defence, ''Kan'' = ship), to denote a multi-purpose vessel. They were initially intended for patrol and fishery protection, minesweeping and as convoy escorts. The ships measured overall, with a beam of and a draft of .〔Chesneau, p. 205〕 They displaced at standard load and at deep load. The ships had two diesel engines, each driving one propeller shaft, which were rated at a total of for a speed of . The ships had a range of at a speed of .〔Jentschura, Jung & Mickel, p. 186〕
The main armament of the ''Shimushu'' class consisted of three in single mounts, one superfiring pair aft and one mount forward of the superstructure. They were built with four anti-aircraft guns in two twin-gun mounts, but the total was increased to 15 guns by August 1943. A dozen depth charges were stowed aboard initially, but this was doubled in May 1942 when their minesweeping gear was removed.〔 The anti-submarine weaponry later rose to 60 depth charges with a and six depth charge throwers.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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