bottom mine

bottom mine

A mine with negative buoyancy which remains on the seabed. Also called ground mine. See also mine.
Dictionary of Military and Associated Terms. US Department of Defense 2005.
Mentioned in ?
References in periodicals archive ?
The only other mines in service are the Quickstrike series of aircraft-deployed weapons (essentially upgrades of the 1960s Destructor mines); the dedicated, thin-wall Mark 65 two-thousand-three-hundred-pound bottom mine (in service since 1983); and the Mark 62 five-hundred-pound and Mark 63 one-thousand-pound bottom mines (1980).
Among them and their areas of competence are EDH (muzzle velocity radars), Fulcrum (C2 systems, Milan firing post upgrades), Ivema (Gila mine-protected APC, light turrets and mountings), LMT (flat bottom mine protection, combat vehicle interiors, mine-protected truck cabs and personnel carrier pods), Moh-9 (ceramic armour), Rippel Effect (40-mm standard and extended-range grenade launchers), RSD (mine-detection vehicles), Sysdel (elint); Tellumat (IFF, UAV datalinks) and Thoroughtec (combat vehicle and tactical simulators, truck driver training simulators, Hawk cockpit simulator).
This is especially difficult with the bottom mine, which has a high friction force with the packing material--requiring much more exertion by the operator.
On 18 February 1991, for example, the billion-dollar Aegis cruiser USS Princeton (CG 59) suffered a "mission kill" from an Iraqi-laid Italian Manta multiple-influence bottom mine costing about $25,000; the warship was out of service for the duration of Operation DESERT STORM and longer.
Four hours later, the Aegis guided-missile cruiser Princeton was almost broken in half by an Italian-made Manta bottom mine in approximately sixty- five feet of water.
According to the ship's specification and capability, the USS Chief is designed to find, classify and destroy moored and bottom mines. MCMs are designed to mask their magnetic and acoustic signatures so they can get close enough to use advanced sonar and remote vehicle systems combined with cable-cutters, magnetic cables, and explosives to safely detonate and dispose of mines in both shallow and deep water.
Mine countermeasure ships are designed as minesweepers capable of finding, classifying and destroying moored and bottom mines. These ships use sonar and video systems, cable cutters and a mine detonating device that can be released and detonated by remote control.
None had any kind of deactivation device, and all were bottom mines. (14)
Navy to detect moored and bottom mines in open and coastal waters.
One in particular is that of Mine Countermeasure (MCM) ships, a vessel designed to find, classify and destroy moored and bottom mines.
Iran's naval forces are likely to soon have 20 missile patrol boats and three Russian-supplied submarines, as well as modern mines (bottom mines using influence fuses appropriate for shallow Gulf waters and rocket-propelled mines suitable for the deep waters of the Strait of Hormuz).