PDM (series of amphibious mines)
Soviet weapon system
The PDM amphibious mines are series of Soviet anti-vehicle mines that could be used on or in beaches, rivers, lakes and shallow coastal waters up to five meters deep.
PDM-1
The PDM-1 has a hemispherical steel case, which is anchored to a heavy steel base. It is normally deployed in water one or two meters deep, and has a central fixing point for a tilt rod. Two men can lay a single mine in 10 to 20 minutes. The mine uses a VPDM-1M tilt rod fuse with an MD-10 detonator.
PDM-1M
The PDM-1M is almost identical to the PDM-1 only having a booster charge to ensure detonation.
Bulgarian PDM-1M
A Bulgarian version of the PDM-1M exists that is substantially developed from the original it uses a plastic cased mine, with a concrete base and a programmable fuse. The fuse can either be of the electro-mechanical tilt rod type, or a magnetic influence fuse. All the fuzes incorporate a 15-minute arming delay. The mine can self-neutralize or self-destruct after a programmed period of between 1 and 45 days.
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