So, since I promised that I will try to get closer to some information about this quite a difficult mine, finally I managed to get some material from at least ofotený professional Directive, which is incidentally included in the level of earmarked and intended only for the special or combat engineers. The materials I have scanned into PDF format and then transformed and modified the course for MS Word format. So here you are, there are materials to which I have received more than four months.
Universal Anti-tank mine PT Mi-U
Universal anti-tank mine PT Mi-U (the PT Mi-U) can be used as follows:
a) contact pressure protipásovou mine,
b) the impact protidnovou contact mine (with the extension block fuses).
In both cases it is the mine-resistant high pressure in the head shock wave.
NOTE: Mina is primarily used as protipásová.
Universal Anti-tank mine is intended to establish explosive anti-tank barriers, a way of manual surface and laying sunk in the two uses.
When you use PT Mi-U as protipásové mines can be placed flush on the surface of semi-automatic and fully automated swapper or. from low-flying helicopter with a slip.
When you use PT Mi-U as protidnové mines can be placed on semi-finished swapper (mine is only necessary to break down the ranks without a release), with the Wand attachment fuses them into the mines by hand later screwed up when it is stored on secured mine field. After screwing the wand attachment, release and transport insurance policies start time laying mines are closed.
Operation and function protipásové:
The firing protipásové PT Mi-U is made after the expiry of the time fuse activation effect of rolling power strip tank of compressed disc, which swings (this vykývnutí provides a flexible rubber ring and body construction mines). When will vykývnutí cutting head striker fuses and fuses with the release of stem steel tip that is thrown at a special spring combined wiretapping detonator with a delay of 100 ms. After nápichu percussion cap is in less than 100 ms plugged into the pit initiation primer cartridges hole in the rubber cup, which firmly grips the detonator and will not let her move back. Igniter detonator then outside of their primary function, secondary to its heat ignites the pyrotechnic composition propellant cartridge fuses. Detonator detonator explodes in pocket primer cartridges, which leads to the bursting charge explosive mines. The mine explosion outplacement railroad tank strip to a width of 600 mm and the tank out of the fight.
Operation and function protikorbové (protidnové)
The firing protidnové PT Mi-U is made after the expiry of the time fuse impact on the bottom of the tank Wand attachment fuses. Collision will deflect the stick and the needle to release the wiretapping, which activates the igniter in the head striker Mine fuses. After the explosion of percussion fuses will head to its function (ie to release the firing pin shaft and stirring wiretapping detonator combined) with the difference that the pyrotechnic propellant composition discarding the body, including mines and fuses wand attachment area of the mine. This allows the maximum cumulative effect of a mine blast and will pierce armor tank bottom to a thickness of 30 mm. Explosion extensively damaged the tank, and in most cases burned. Crew tank is destroyed.
In the event that PT Mi-U bearing block extension (for protidnovou function-adjusted) rail belt moves the tank, it will function as the protipásové mines, and that outplacement railroad tank into the belt width 600 mm.
2nd General Characteristics
- The total weight of the mines with fuses ... 9.50 kg
- The weight of the bursting charge ... 7.00 kg
(Peripheral part of the cast of TNT, the middle part TNT/H-50/50)
- Weight extension wand ... 0.13 kg
- Diameter of mine ... 320 mm
- Hip height mines ... 70 mm
- Maximum height of mine ... 128 mm
- Diameter of disc pressure ... 110 mm
- Activating force on the pressure plate more than ... 1.5 kN
- Activating the power adapter Wand než.4 more ... 31.4 N
- The effect protipásové mines - destroy a tank rolling strip ... width of 600 mm
- The effect protidnové mines - Pierce armor ... to 30mm thick
- The function of the mines in the temperature range ... -30 ° C to +40 ° C
- Resistance to pressure mines at the head shock wave ... 0.35 MPa
- Time fuse function of time after the release ... 1-10 minutes
- Tare weight laťového with 2 mines and 2 in block extension ... 25.5 kg
- Laťového lightweight package ... 6.0 kg
- Laťového size envelope with mine ... 660 x 365 x 192 mm
Saving PT Mi-U in the lath at a variety of packaging:
- Number of minutes on a variety of ... 24 pc
- Weight of the pallets with mine ... max 330.0 kg
- Base floor pallets ... 1200 x 800 mm
- Full range of height ... 815 mm
a) the body of the universal anti-tank mines, detonators and pressure plate are largely made of plastic. Resistance ring, which connects the body with mine blast wheel is made of rubber. Springs Detonators and fuses the firing pin tip is metal. Wand attachment for use in adjusting protidnové mines are made of metal. Carrying handle and tilt the mine is located on the side of the body in the recess. PT Mi-U mine-finder are detectable for metal mines;
b) the body is mine / the packaging for the bursting charge, which is divided into two parts:
- Circumferential load 2, consisting of cast TNT
- The central charge 3, consisting of a mixture of cast TNT / H ratio of 50/50 with the fourth primer cartridges
In the central part of the mine is fitted with detonators 5 special wiretapping combined with a detonator relays 6th The detonator is secured in position (broken string shock) initiation of the primer pocket seven cartridges 4th In the extended part of the sump is located roznětovou tablet 8 (ring-shaped) with propellant fold. Above the sump detonator primer cartridges are stored rubber trap 9, which prevents the protrusion of the detonator detonator pocket. Pressure plate 10 is fitted in the upper part of the work, which includes a time fuse at the 12th button The button has a time fuse protected thread cap, which stands out above the top plate. This position is held for transport safety 13, which prevents the button is pressed the time fuse.
Time breaker is equipped with five rubber bellows 14 with the passing of air filters. After removal of the transport policy and the pressing button 12 is released spring 15 which pushes the air from the rubber bellows 14 through filters. Extrusion air takes about 10 minutes. Function of time fuses are ejected ram 1916 fuses 5 and released the striker shaft 17 with 6 on the activation of the detonator mines for both functions (ie protipásovou or. Protidnovou);
c) a universal anti-tank mines are fitted with nonremovable relays combined with a detonator. All the connections (and thread) are sealed against water penetration.
For these reasons it is forbidden to interfere in the interior of the mine and analyze parts;
d) Block bit is used only for adjusting PT Mi-U when used as protidnové mines.
4th Principles for the use of PT Mi-U
Universal Anti-tank mines containing combined detonator, which at the time of storage and handling prior to use of primer cartridges delayed bursting charge (detonation chain is interrupted).
All tasks associated with the adjustment, PT Mi-U as protipásové lie in the removal of transport policy and the control pulse time fuse. Button is pressed the time fuses as a last act before masking mines (or just before putting the mechanization means for setting manually, or. Lock, which is part kladecího-laying equipment).
The PT Mi-U is a protidnové adjustment after the imposition of the ground or into the bed in the removal of caps from the button time fuses, pulling out the wire part of the transport policy and the wand attachment screw thread into the internal time fuse button. After screwing the wand attachment is stored in a mine field. Then eject the traffic safety of the key slots of time fuse. Before masking the Wand attachment pushed downward until it stops, thus activated by time fuse. After disguising mines (covered by soil and vegetation surrounding material) to be released by unscrewing the attachment cane transport safety and allowed the extension in the unscrewed position on the attachment. After about 10 minutes after pushing the button on the wand extension of time the policy is fully zpohotovena mine.
Acts other than described above, is prohibited PT Mi-U to perform.
The adjustment and zpohotovení PT Mi-U must be maintained all the safety measures.
Universal Anti-tank mines are laid by hand and recessed surface (such as mines and protipásové protidnové).
The main way of putting it at least protipásových swapper mine laying, and the recessed surface.
The main method of mine-laying protidnových surface is placed manually, and in the field with more vegetation, which allows natural conceal mines. Asking handheld embedded (in bed created by Minesweeper) will be carried out only in isolated cases.
To ensure PT Mi-U is manually placed against dezadjustaci detonators used Ro-4 with an additional 400 g tritolovou cartridges.
Traffic fuses removed from PT Mi-U after the laying of the master cast.
Time fuse, which was accidentally (or at the wrong time by mistake into action by pushing the button) must be immediately re-secured.
The removal and dezadjustaci PT Mi-U is strictly necessary to follow safety measures. Moreover, it is necessary to maintain the procedure. Saved mine first examines whether there has been no violation of the mines of the body, activating the blade or at least protidnových wand attachments or click time fuse. Mines, which were inspection found that there was to humiliate any functional part or mine bait secured shall not dezadjustovat and must be destroyed on the spot! In assessing the extent of disturbance imposed by the mines, it is recommended to observe the tracks of vehicles in the neighborhood and the location of mines.
Protipásové PT Mi-U can dezadjustovat if they did not undermine the functional parts, the following procedure:
- The exposed surface and adjusted mine to remove the cap from the time the fuse button. The key thread of time fuse is easily threaded part screwed in traffic safety;
- Pull the transport safety screwed up is key to the lifting of the time fuse in the upper position and thereby allow for the firing pin shaft combined with a detonator fuses ram;
- Traffic safety is the key time fuse unscrewed, inserted into the grooves in the key and twist to ensure that flipping the fuse wire. Then click time fuse cap bear against the ingress of dirt into the thread. From that moment she was also inducted into the rear function of time fuse. After about 2 hours will be filled with rubber bellows air time and mine fuses can be used again in combat deployment.
Protidnové PT Mi-U can dezadjustovat if there was no violation of their functional parts or wand attachment, and the following procedure:
- The exposed and surface mines carefully cleaned free of masking material is first screwed safety wand attachment;
- Secured by pulling the Wand tool (up) button to pull the fuse time and ensure traffic safety incorporated into the key slots;
- Wand unit is unscrewed from the button and wire fuse providing transport insurance against the falling upside down. Thread button in time to close the fuse cap. From that moment on the shaft with a striker secured a detonator fuses formers and time fuse is put into reverse function.
Reuse mine in combat deployment is possible only after 2 hours.
No other tasks than those described, and in the above sequence may not be implemented!
5th Transport, storage and treatment
Universal anti-tank mines for shipment and storage packed by two pieces of container lath. The mines are equipped with fuses, which are held outside the detonator fuses trap primer cartridges. This position is interrupted by detonating a string between the detonator and primer cartridges.
Block attachments with only two pieces are packaged in a container lath PT Mi-U is packaged separately or as necessary to trellised containers subsequently added.
Lattice packing (Fig. 7) is made of wood and consists of laťového DNA, which are beds for two mines, and laťového lid. Both parts are connected on the one hand, hinges on the opposite side of the conclusions of two milliamperes. Each package is a lattice on the inside cover (front) fitted with brackets for two bits Block.
Mina trellised in containers for shipment and storage, stored on pallets.
- The number of trellised containers with two mines per pallet ... 12 pc
- Number PTMi-U ... 24 pc
- Length, width, height of the full range of ... 1200 x 800 x 815 mm
- Volume ... about 1 m3
- Area ... 1 m2
- The weight of the full range of ... max 330 kg
- Weight of explosives in full pallet (weight x number of minutes in an explosive mine) ... 168 kg
Care PT Mi-U munitions storage is limited to repair signs on the bodies of minutes and trellised containers. It is also allowed correction grip (replacement).
Other repairs mines or wand attachment is strictly prohibited.
Source: CoEEOD TN
PT_Mi_U.jpgHlavné časti PT Mi U RO_9_činnosť.jpg