Naval mine is a self-contained explosive device placed in water to damage or destroy surface ships or submarines.
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Naval mine is a self-contained explosive device placed in water to damage or destroy surface ships or submarines.
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Jacobi Naval mine was designed by German-born, Russian engineer Jacobi, in 1853.
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British experienced a stroke of luck in November 1939, when a German Naval mine was dropped from an aircraft onto the mudflats off Shoeburyness during low tide.
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The Naval mine detected this loss of the magnetic field which caused it to detonate.
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On 21 November 1939, a Naval mine broke her keel, which damaged her engine and boiler rooms, as well as injuring 46 men with one man later dying from his injuries.
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Germans developed a pressure-activated Naval mine and planned to deploy it as well, but they saved it for later use when it became clear the British had defeated the magnetic system.
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Later, the American antenna Naval mine was widely used because submarines could be at any depth from the surface to the seabed.
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Generally, this type of Naval mine is set to float just below the surface of the water or as deep as five meters.
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The sophistication of influence Naval mine fuses has increased considerably over the years as first transistors and then microprocessors have been incorporated into designs.
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Alternatively, the Naval mine can be programmed specifically to ignore all surface vessels regardless of size and exclusively target submarines.
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Anti-sweep Naval mine is a very small Naval mine with as small a floating device as possible.
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Russian invention, the rocket Naval mine is a bottom distance Naval mine that fires a homing high-speed rocket upwards towards the target.
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In WWII, aircraft came into favour for Naval mine laying with one of the largest examples being the mining of the Japanese sea routes in Operation Starvation.
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Each Naval mine is recorded for later clearing, but it is not unusual for these records to be lost together with the ships.
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Japanese merchant shipping suffered tremendous losses, while Japanese Naval mine sweeping forces were spread too thin attending to far-flung ports and extensive coastlines.
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Japanese Naval mine sweeping was unsuccessful; and the Japanese abandoned Palau as a base when their first ship attempting to traverse the swept channel was damaged by a Naval mine detonation.
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Sometimes "cutters", explosive devices to cut the Naval mine's wire, are used to lessen the strain on the sweeping wire.
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However, as Naval mine warfare became more developed this method became uneconomical.
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The computerised fuze on a Stonefish Naval mine contains acoustic, magnetic and water pressure displacement target detection sensors.
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The Naval mine weighs 990 kilograms and contains a 600 kilogram aluminised PBX explosive warhead.
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