The Mine Mk 50 series includes the MK 52, a 1000-pound aircraft-laid bottom mine containing an explosive charge of 625 pounds of HBX-1. The MK 52 is an influence mine specifically designed to actuate on submarine signatures, although
it is also equally effective against most surface ship signatures.
In addition to using
identical mine cases, all mods of the Mk 52 have removable
instrument racks, a feature which makes it possible to assemble
wire, test, and store "ready" firing-component
assemblies remote from the explosive-loaded mine case and from
other explosives. Moreover, cables are color-coded and molded,
and firing components are color-coded and modular. This not only
makes assembly virtually foolproof but, through such ready
interchangeability, it also means that each Mk 52 mine can be
assembled to any of several mods, providing any desired
combination of influence type actuation. These modular components are the same ones that
are used in the Mk 55 mines.
- Mod 1
- employs an acoustic firing mechanism.
- Mod 2
- employs a magnetic firing mechanism, efficient over a
wide range of planting depths.
- Mod 3
- employs a combination of pressure and magnetic firing
- Mod 4
- (not used).
- Mod 5
- employs acoustic and magnetic firing mechanisms.
- Mod 6
- combines all three influence type firing mechanisms:
acoustic, pressure, and magnetic, making it difficult to
- Mod 11
- employs either magnetic or magnetic-seismic firing
- Mod 12
- employs magnetic firing mechanism.
- Mod 13
- employs pressure, magnetic firing mechanism.
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