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The ''Aggressive''-class minesweepers are a class of US-built minesweepers. They are designated as ''MSO'' (Mine Sweeper Ocean), distinguishing them from the smaller coastal MSCs and inshore MSIs. Besides the US Navy, this class of vessels has also been used by the Belgian Navy and the Norwegian Navy, among others. ==Background== Minesweeping, or the disposal of naval mines, by these vessels is performed in different ways: *Sweeping proper, with an underwater cable cutting the mooring cables of floating mines. The mines then come to the surface and are destroyed by gunfire. *Acoustic sweeping, with a towed device producing noise to trigger acoustic mines. *Magnetic sweeping, with a towed device producing a magnetic field to trigger magnetic mines. To protect the minesweeper itself against magnetic mines, the hull of the ship is made of wood. 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「Aggressive-class minesweeper」の詳細全文を読む スポンサード リンク
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