Military Review

Weapon Automation Systems P. Cherkashin

Currently in small arms weapons A relatively small number of automation systems are used. Using various technologies and innovations, these systems allow you to create new weapons with acceptable characteristics. Nevertheless, regularly there are proposals that, according to the idea of ​​their authors, should lead to the emergence of even more advanced weapons systems. Various methods are offered for increasing the rate of fire, improving accuracy and accuracy of fire, as well as increasing the power of ammunition. In the middle of the last decade, another proposal appeared, the author of which was the inventor P. Cherkashin. The original weapon automation system authored by Cherkashin is designed to solve several existing problems.

The main idea of ​​the invention of P. Cherkashin is to create a weapon system using a gas engine having a barrel without any vent holes. Such a design of the barrel, in which the discharge of gases to the piston is made after the bullet passes a muzzle, should improve some characteristics of small arms. The main effect of this innovation is an increase in the initial velocity of the bullet in comparison with a barrel of the same length, equipped with a vapor system of the “traditional” design. The consequence of this should be a greater firing range and higher performance when using armor-piercing bullets.

Weapon Automation Systems P. Cherkashin

Submachine gun Cherkashin

As is clear from the drawings attached to the patent for a new gas automatics (patent No. XXUMX of the Eurasian Patent Organization), some of the elements of the gas engine are located outside of the receiver. The muzzle of the barrel of the weapon protrudes from the receiver and is covered with a movable muzzle acting as a gas tube and piston. On the muzzle of the barrel there is a washer with a seal that fills the space between the barrel and the muzzle. In front of the muzzle there is a small tube with an inner diameter slightly larger than the caliber of the bullet. At the rear of the muzzle is a mount for thrust-slide, extending into the receiver.

Automatic submachine gun, machine gun contains a receiver 1; 2 trunk; back support sleeve 3; 4 guide bushing; 5 expansion chamber; 6 lower slider; 7 top slider; gear axis 8; 9 gear; 10 support pad; 11 slide frame rods; 12 shutter frame; 13 shutter; resistant larvae (right, left) 14; 15 head; ejector with axle and spring 16; body striker 17; 18 trigger frame; 19 self-timer lever pivot lever pivot; whisper 20; 21 self-timer lever; 22 fire mode switch; 23 whisper axis; 24 return mechanisms; 25 return mechanisms; return springs 26; 27 bushings; trigger 28; trigger spring 29; 30 trigger rod; 31 trigger axis; 32 fuse; receiver cover with sighting device and block of sight 33; 34 trigger guard; spring whispered 35; 36 self-timer spring; emphasis of a trigger frame of 37.

Part of the slide, located inside the receiver, it is proposed to perform in the form of a rack. The slider teeth are associated with the gear, the upper part of which, in turn, in the same way should interact with another slider located in the upper part of the receiver. The back of the upper slide is rigidly connected to the bolt carrier and completes the transfer of gas energy to the weapon’s bolt. At the rear, the slide slide is in contact with the return spring. Such a “reciprocating mechanism” in combination with the original muzzle is the basis of the new automatic gas construction of Cherkashin.

When firing, the barrel of the original weapon should be locked using two symmetric swinging larvae. The latter must stand on the special stops of the receiver. The bolt carrier with bolt should move on the grooves of the receiver. The bolt of the weapon interacts with the trigger type trigger. The proposed in the patent design of the weapon allows you to fire both single shots and bursts. The fire interpreter may be located above the pistol grip. It is possible to use an automatic fuse.

Reciprocating device using a chain

device of the reciprocating mechanism using a cable

The principle of operation of gas automatics P. Cherkashin is as follows. When fired, the powder gases push the bullet out of the barrel. Until the bullet leaves the barrel, there is no pressure reduction due to the removal of gases into the gas engine. Coming out of the barrel, the powder gases fall into the space between the front of the muzzle and the washer on the barrel. Continuing to expand, the powder gases push the muzzle forward. The muzzle interacts with its slide-slider and, through two rack and pinion gears, sends part of the energy of the gases to the upper slider, which is located in the receiver. Under the action of the upper slider slide frame reduces swinging larvae and releases the shutter. Moving back, the bolt removes the cartridge case, and also cocks the trigger and prepares the weapon for a new shot.

After the pressure in the muzzle drops to the required level (gases can flow freely through the front hole in the muzzle), the return spring returns the bolt carrier to its place. In addition, with the aid of a system of sliders, the muzzle is returned to its initial position. When the mechanisms return to their original position, a new cartridge is sent. Locking the bolt using two swinging larvae occurs using a special wedge on the bolt carrier.

Cluster munition device

The drawings of the perspective submachine gun based on the proposed system are attached to the patent for the new gas automatics. According to some reports, there is a prototype of such a submachine gun. It is noted that the proposed gas automation system allows you to create barreled weapons of various classes: pistols, submachine guns, machine guns, and even automatic guns of caliber up to 30 mm.

The use of a movable muzzle and "reciprocating mechanism" provides a significant reduction in pressure loss of powder gases when the bullet moves along the bore. In addition, it is possible to use other solutions that can improve the characteristics of the weapon. As stated, in the design of advanced weapons, if necessary, a knot can be included that reduces the barrel toss when fired and thereby increases the accuracy and accuracy of fire. In this case, in the design of a submachine gun or machine gun, a system of weights and counterweight is introduced, compensating toss by its movement.

The device is an automatic using a new scheme of automation

According to the author of the project, the connection of the bolt and the muzzle can be carried out not only with the help of sliders and gears. It is proposed to apply the transmission using a cable and rollers or chain and roller. When using alternative systems, the layout of the internal weapon assemblies changes accordingly. The rollers of the cable or chain mechanism should be placed in the rear part of the receiver, behind the slide frame and other mechanisms of the weapon.

It is known that there is at least one sample of a submachine gun made using the gas automatics of P. Cherkashin. Information about the tests or their results is missing. Nevertheless, even without such information it is possible to present approximate prospects of the proposed automation system. The advantages of the proposed system include an increased initial velocity of the bullet in comparison with a weapon having a barrel of the same length and equipped with a “traditional” exhaust system. In addition, a prospective weapon compensation mechanism that enhances the accuracy and accuracy of fire can be considered an advantage of advanced weapons.

At the same time, the Cherkashin gas automation system is not without flaws, which can have the most negative effect on the operation of advanced weapons. The main one is the relatively complex construction of automation, which uses several parts and several mechanical gears. With all its advantages, such a system can be unstable to various contaminants. Dust, sand or water can impede the interaction of elements of the rack and pinion, stop mechanisms, or even make them unusable. Using other ways to connect the muzzle and bolt may increase the system’s resistance to contamination, but the rollers, cable or chain have their own drawbacks, which can also adversely affect the operation of the weapon.

The gas automatics system proposed by P. Cherkashin for small arms and small-caliber artillery is of particular interest. It allows you to significantly raise the firing characteristics of the weapon, although it is not without flaws that hinder practical use. Perhaps in the future, the Cherkashin system will be refined and improved, which will allow weapons with such an automation system to get to the test machine guns. At the same time, it cannot be excluded that the original idea remained at the stage of obtaining a patent and would not receive any further development.

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  1. Siberia 9444
    Siberia 9444 April 14 2014 09: 54
    A very interesting article and the very idea of ​​a new automation scheme, but the drawings would be half better to fully understand. good
    1. Timeout
      Timeout April 14 2014 11: 21
      Quote: Siberia 9444
      A very interesting article and the very idea of ​​a new automation scheme, but the drawings would be half better to fully understand. good

      Automation according to a similar principle, but with a fixed muzzle and a gas piston in the form of a ring, was used in the Mauser G.41 (M) and Walther G.41 rifles (unsuccessful). But to be honest, the slider in the form of a gas drive is only a complication of the system.
      1. mirag2
        mirag2 April 16 2014 20: 38
        This is with which they were tormented, tormented, and then simply licked our SVT.
        1. anomalocaris
          anomalocaris April 17 2014 16: 51
          Yeah. She is the most.
      2. anomalocaris
        anomalocaris April 17 2014 16: 53
        And the fact that there is a pure Bang system on this unit. That's just how much they didn’t suffer with her, they couldn’t depict a normal thing.
  2. Zordan
    Zordan April 14 2014 11: 01
    There have always been enough Kulibins in Russia!
    Unusual system ...
    1. anomalocaris
      anomalocaris April 17 2014 16: 55
      Here are just these Kulibin periodically puts in completely unknown Palestine.
  3. brn521
    brn521 April 14 2014 11: 06
    Gears, cables and chains - a thing extremely unreliable. And the muzzle, playing the role of a gas vent, warms the trunk and warms itself. So I can’t imagine what a machine gun could be with such a design.
    1. jjj
      jjj April 14 2014 17: 10
      And like a gun - bulky and angular. You can’t shut your belt
  4. badger1974
    badger1974 April 14 2014 12: 24
    there are claims to ammunition, it would not have been easier to finish with the kinematics "from the sleeve" and go to the sleeveless, I can share my thoughts
  5. Alex_T
    Alex_T April 14 2014 12: 43
    The original copy, but nothing superfluous, such as a silencer, can not be screwed onto the barrel. The idea with a counter-flow of the piston and the rolling parts on the gear was implemented in AEK-971 Gareva-Koksharova (AK-107, AK-108), development of the 80s.
    1. Timeout
      Timeout April 14 2014 14: 00
      Quote: Alex_T
      retractable parts on the gear implemented in AEK-971 Gareva-Koksharova (AK-107, AK-108), the development of the 80s.

      Sliders are also in the AK-107, the cable is in the AN-94. In one way or another, all this is used in various weapons systems.
      1. mirag2
        mirag2 April 16 2014 20: 40
        This is to compensate for recoil impulses. In the sense of sliders.
    2. badger1974
      badger1974 April 14 2014 14: 56
      oh well, the hare will be perverted, Nikon is also on the ropes, but the good of two precision shots? really everything else flies like a Kalash, so what the hell to sculpt that without getting to the same sweetening, BEZGILZA BETTER
      1. anomalocaris
        anomalocaris April 14 2014 15: 26
        I wonder which one?
        1. badger1974
          badger1974 April 15 2014 17: 21
          I can share thoughts about the sleeveless
          1. anomalocaris
            anomalocaris April 17 2014 16: 49
            Try it ...
  6. Skiff_spb
    Skiff_spb April 14 2014 13: 26
    It’s good that the possible disadvantages are considered. And they often like authors to spread, in which some advantages and only fools do not allow the widespread production to begin.

    I agree with the minuses, the system is complex, which means that problems in case of clogging are inevitable. But also interesting.
    I think weapons designers will be able to take some of the ideas for designing production models.
  7. Sledgehammer
    Sledgehammer April 14 2014 14: 08
    Thanks, very interesting article.
  8. tchoni
    tchoni April 14 2014 14: 28
    I agree with all of the above, but did not understand one thing - the cluster munition was drawn - and not a word was written about it. This type of picture is like this - to download ......?
  9. inkass_98
    inkass_98 April 14 2014 16: 31
    It is clear that the model is experimental, made to test the design's operability, but it looks like it was like pioneers at the lessons of labor sharpened with a file. The idea is interesting, but the cons outweigh in the end, nothing remains of the merits. First of all, the question arises of the reliability of automation in conditions of increased pollution, gears and chains are also alarming in terms of reliability - dust, sand, particles of grease or dirt frozen in winter, etc. Manufacturability is also in question.
    It is good that we have people whose ideas are raging, it is possible that through such trial and error they will come up with something new and useful.
  10. kav669
    kav669 April 14 2014 20: 24
    interesting prototype, and what year?
  11. Svetovod
    Svetovod April 14 2014 20: 52
    Once I came up with the schematics of submachine guns / rifles and there was also a schematic diagram with the counter-current.
    Here is a picture
    For submachine guns there are usefulnesses:
    1) By dividing the bolt into two countercurrent parts, the loading handle can be made external, cocking any of the bolt parts, and when shooting it is stationary - that is, you can cock it by pulling it back or pushing it forward - convenience.
    2) You can try a very light blocking breech part and a heavy counter-running part. And calculate the mass in such a way so that when fired, the recoil momentum is immediately compensated by a blow from the heavily opposed.
    That is, the bulk of the shutter moves and strikes forward - towards recoil. Compensation.
    3) The return spring can only meet the forward part of the "split" bolt and stay above the barrel.
    1. badger1974
      badger1974 April 15 2014 17: 28
      it’s a pity that you don’t take reliability into account, the M-16 is also easy to disassemble-assemble, and more accurate than the AK, but what the hell is it for you in battle, when it sticks, you first take an interest in the guys who will equip such weapons, running is important and then relational
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