Technical and tactical characteristics of the OZM-72 mine
- Mine type
- bounding antipersonnel fragmentation mine with all-round effect
- Body
- steel
- Weight
- 5 kg
- Weight of explosive charge TNT
- 0.66 kg
- Diameter
- 108 mm
- Height
- 172 mm
- Mine burst height
- 0.6-0.9 m
- Fuzes
- MUV, MUV-2, MUV-3, MUV-4, MVE-72, MVE-NS, NVU-P explosive device, NM stab-initiating mechanism
- Sensitivity:
MUV, MUV-2
MUV-3, MUV-4
0.5 - 1 kg
1.5 - 6 kg- Radius of continuous lethal effect
- 25-30 m
- Range of individual lethal fragments
- up to 50 m
- Effective casualty area
- 2124 m²
- Operating temperature range
- -40 to +50 °C
The mine can be fitted for anti-removal by means of booby traps.
The mine consists of a steel body containing an explosive charge, preformed lethal elements (2400 rollers or balls), a gunpowder ejection charge, tripwire, internal percussion release mechanism, and detonator.
The mine is emplaced manually in the ground, or, if emplacement in the ground is not possible, on the ground (in this case the mine is tied to a stake driven into the ground).
The period of combat operation is unlimited. The mine is not equipped with a self-destructor. It has no anti-lift or disarming devices, but the high sensitivity of the MUV-2 and MUV-3 fuzes makes disarming the mine impossible.
The time required for the mine to assume the armed position after removal of the safety pin depends on the type of MUV-series fuze. When the MUV fuze is used, the mine assumes the armed position immediately. When MUV-2 or MUV-3 fuzes are used, the time from pulling out the safety pin to the fuze being set to the armed cocked position ranges, depending on ambient temperature, from 3 minutes at 40°C to 59 hours (2.5 days) at -40°C.
OZM-72 mines emplaced with MUV-2 and MUV-3 fuzes are prohibited from being disarmed (removed)!
The mine can also be used with MVZ-72 and MVO-NS fuzes, which have a target sensor in the form of a low-visibility thin breakwire (0.14 mm enamelled twin wire, 50 (40) m long, practically invisible to the eye from as little as 1-2 m, like fishing line). In this case, the mine’s period of combat operation is limited by the service life of the power supply battery.
When MVO-72 and MVZ-NS fuzes are used, the wire tripwire length is 50 and 40 meters respectively.
Disarming mines emplaced with the MVZ-72 fuze is prohibited.
An emplaced mine with an MVZ-NS fuze is not subject to disarming.
OZM-72 mines emplaced with MUV-3, MUV-4, MVZ-72, and MVZ-NS fuzes are destroyed by clearing with grapnels or by the passage of tanks. When clearing manually with grapnels, throwing the grapnel onto the minefield and pulling it back are performed only from cover (for example, a specially dug trench).
Only mines emplaced in controlled minefields may be removed, after they have been placed in a safe condition (control panels disconnected).
When the wire breaks, the mine detonates, bounding to a height of 0.6-0.9 m and striking soldiers with body fragments and 2400 preformed lethal elements approximately 5 mm in diameter, within a radius of 30 meters.
The mine is used both independently and as part of the NVU-P explosive device set (5 mines), also known as the “Okhota Set”.
Color
Green.
Marking
Standard, applied in black paint on the side wall and includes:
- OZM-72 - mine designation.
- 912-278-80 - manufacturer’s plant code - lot number - year of manufacture.
- T - filling code.