PROM-1 (AP bounding fragmentation mine, steel casing, former Yugoslavia).
GENERAL DESCRIPTION OF THE MINE
The PROM-1 is a circular AP bounding fragmentation mine with a body made of forged steel. There is a threaded fuze well in the centre on the top of the mine, in which the UPROM-1 external fuze is screwed into. The base of the mine is secured to the bottom of the mine body with five screws. The mine body is pre-fragmented inside. The main explosive charge is made of cast Trotil in earlier models and Hexolite in later models. The propelling charge is made of 3 g. of black powder and is filled into a metal tube located through the centre of the main charge. An internal fuze is located offset inside the mine body. It is initiated by a wire which is attached to the lower side of the fuze and secured to the base of the mine. The fuze is built into the mine at the factory and is not to be removed. The external UPROM-1 fuze is similar to the UPMR-3. The difference is that the UPMR-3 doesn’t have a built in initiation capsule while the UPROM-1 has. The PROM-1 is delivered with two rolls of trip wire, which are 16 m long and covered with polyvinyl-chloride plastic. A hook is fastened in each end of the trip wires for attachment to the fuze and anchor. Although the PROM-1 only comes with two trip wires, it can be set up with up to six trip wires. On the upper side of the UPROM-1 is a carrier on which the pressure star is located. On the top of the carrier is a split ring for connection to trip wires. Under the pressure star is a fuze carrier on which the safety clip is attached by means of a puller. When the puller is down the safety clip is locked and cannot be removed. When the puller is in the horizontal position the safety clip is free to be pulled out. The pressure star carrier is shaped like a rod and has a hole through the end to attach the trip wire split ring. The pressure star has four arms which are directed upwards. In the middle is a hole to insert the pressure star carrier. The mine is normally buried with only the pressure star and the star carrier exposed above the ground.
METHOD OF OPERATION
Required pull of the trip or pressure on the pressure star, pushes an internal cylinder in the fuze down until the retaining balls fall out, releasing the spring loaded striker which strikes the ignition capsule which in turn fires the propelling charge. This creates a pressure between the base and the mine body. The screws on the bottom of the mine breaks and the mine body is thrown upwards until it reaches the end of the anchor wire. The length of the anchor wire is 0,7-0,8 m on older versions and 0,2-0,3 m on newer versions. When the anchor wire becomes tight the spring loaded striker is released and fires the detonator which in turn fires the booster and the main charge.
NEUTRALISING
Trace both ends of the trip wire. Remove the trip wire clip from the mine or cut the wire. Insert safety clip with the puller in the horizontal position into the bed of the fuze. Lock it by lowing the puller down. If a safety clip is not available, a 2 mm wire or nail can be inserted into the hole of the safety clip carrier.
DISARMING
Neutralise the mine. Remove fuze from the mine body.
REMARKS
Lethal radius is 40 m and hazardous radius is 50 m.
Just in case, you know, you ever came across a dark steel cylinder 26 cm tall with some sharp spines on one end, attached to a couple of trip wires, and you were wondering how to keep it from killing you. You’re most likely to run into one in Angola (“the greatest concentration of landmines in the world,” says the BBC, citing some 15 million mines; other sources say anywhere from 6 million to 20 million; 145 of them went off last year, down from 339 in 2001. “Previous attempts at peace did not last, and crime is still widespread,” warns Lonely Planet Angola. “Kidnapping, car-jacking and robbery continue to put foreign travelers at risk. The UK, US and Australian governments are still warning against travel to this hopeful but volatile nation. Stay tuned”)—but the PROM-1’s a popular little number: they’re also found in Mozambique, Iraq, and of course throughout the former Yugoslavia, their country of origin. —The Landmines Database was found via Futurismic, whose permalinks aren’t working for the day in question; “If not for the subject matter, you’d think they were assembly instructions for a Target bookshelf,” says poster Jeremy Lyon. And what blog post on landmines from a Yank still peaceably sipping his morning coffee would be complete without the requisite list of our compatriots and fellow travellers?
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