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W-19-class minesweeper : ウィキペディア英語版 | W-19-class minesweeper
The was a class of minesweepers of the Imperial Japanese Navy (IJN), serving during World War II. 70 vessels were planned under the Maru 4 Programme (Ship # 164–169), Maru Kyū Programme (Ship # 410–437) and Kai-Maru 5 Programme (Ship # 5301–5336), however, only 17 vessels were completed. ==Background==
* Project number I4B. Improved model of the ''No.7''-class. The IJN gave them a turret of 55 degrees gun elevation,〔11th Year Type naval gun, Type-M turret. ''No.7''-class equipped the 3rd Year Type 120 mm naval gun, Type-G turret (33 degrees gun elevation).〕 because the IJN wanted to attack the strong point of behind the hill to them. And it was not useful in the Pacific War very much. * And after the Maru Kyū Programme vessels abolished double-curvature bow for a mass production and changed bow shape.
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「W-19-class minesweeper」の詳細全文を読む
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