naval mine
Sign in to saveexplosive weapon for use in seas and waterways, triggered by the target's approach
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Polish wz. 08/39 contact mine. The protuberances near the top of the mine, here with their protective covers, are called Hertz horns, and these trigger the mine's detonation when a ship bumps into them. An explosion of a naval mine
A naval mine is a self-contained explosive weapon placed in water to damage or destroy surface ships or submarines. Similar to anti-personnel and other land mines, and unlike purpose launched naval depth charges, they are deposited and left to wait until, depending on their fuzing, they are triggered by the approach of or contact with any vessel.