Description
Sea Mine PDM-2B is a new generation of seabed mines designed for building defence barriers at depths from
2.5 to 10 m in sea or river watersides. The mine can be placed by a minelayer.
After the mine has been laid on the seabed, the warhead floats up and automatically comes into position from 0.8 to 1 m below the sea surface. The mine has a built-in non-contact sensor system with three safety locks: transportation, mechanical and electronic. After removal of the first safely lock and submerging the mine, the second safety lock is activated.
The electronic block controls autonomously the state of the mine according to a pre-set complex program for processing and analyzing of the sensor system signals, performing the detonation, protecting the electronic keys from an unintended activation, protecting the systems from battery capacity drop, etc.
The fuse has two programmable modes for termination of the armed state after expiration of the pre-set time i.e. self-destruction or neutralization.
When the mine goes into neutralized state, the fuse separates from the warhead and floats up to the surface.
Option
Acoustic Underwater Control System- AUCS can be employed to control the mine from the coast or from a vessel. The system performs the following functions: activation and deactivation (neutralization or self-destruction). Two versions of AUCS are available: AUCS-M with remote control range up to 1 000 m and AUCS-L with remote control range up to 2 000 m distance. The depth remote control range of the two models is respectively up to 30m and 50m. The commands are transmitted by hydro acoustic signals from a control station. Each sensor system has an individual coded access number, which allows sending control signals to the fuses of each seamine, to separate groups of seamines or to all seamines of an anti-landing barrier within the range of control system.
TECHNICAL CHARACTERISTICS
| Operating depth, m | 2.5-10.0 |
| Weight of the mine, kg | 12 |
| Weight of warhead, kg | 20 |
| Dimensions (diameter x height), mm | 360 x 600 |
| Distance between two mines, m | >20 |
| Main charge | cast TNT |
| Booster charge | pressed TNT |
| Safety time (since submerging), minutes | 3 |
| Maximum duration of armed state, days | 90 |
| Armed state setup step, days | 1 |
| Resistance to rough sea, ball | 5 |
| Operation temperature in air/water, С° | -10 to 50/-2 to 40 |
| Storage term in storehouse:
– temperatures from -20° to 60°C – temperatures from 15° to 25°C |
2 years 10 years |