Military Review

Ultrabullpap Shevchenko "Smerch"

29
Ultrabullpap Shevchenko "Smerch"



The middle of the 1970-ies was marked by the competition, which was held in the framework of experimental design work on the topic "Modern". The aim of the competition was the creation of a shortened machine gun of 5,45 caliber of millimeters. First of all, it was to become the main armament for crews of submarines, aircraft crews, driver mechanics, grenade launcher calculations and artillery pieces. The main requirements that were imposed on it were reliability, safety, and also small dimensions. The width and height of the new weapons should not exceed AK-74 dimensions, and the length should be no more than 500 millimeters.

By and large, the work of the theme “Modern” could be called competitive only conditionally. Most of the designers who participated in this competition, perfectly knew who would be the winner. Izhevsk Machine-Building Plant at that time was the largest center for the production of small arms, which in many respects could influence the outcome of the competition. Kalashnikov Mikhail Timofeevich decided to go through the most simple way - to maximally modify the new model of his machine gun, which was put into service only in 1974 year - АКС-74 with caliber 5,45 millimeter. As a result, part of the automation and receiver almost were not changed. Well, it was possible to achieve the required length simply by reducing the length of the barrel from 415 millimeters to 212 millimeters. Thus, the well-known to each specialist AKS-74U appeared, which was put into service in 1980.
It must be admitted that in many ways such a decision was quite correct - the process of setting up production was considerably simplified, although it took two full years. The cost price also decreased, repair and just the development of weapons in the army was simplified. The only serious consequence of shortening the barrel was the reduction of the range of fire, as well as the effectiveness of fire, when compared with the original model of the AKS-74.
But despite such an easily predicted result of the competition, many participants did their work, creating viable and fairly original designs, thanks to which Russian weapon science was significantly enriched.

It is quite understandable that against the background of the participation of the Russian military genius Mikhail Timofeevich, few people paid attention to the fact that the society of cadets from the Tula Higher Engineering School also took part in the competition. However, thanks to the research conducted, Sergeant A. Shevchenko. managed to develop the design of the Smerch machine gun in 5,45 caliber of millimeter.



The design of the Smerch machine corresponded to the layout of the Ultrabulpap — while maintaining the ballistic characteristics corresponding to the AKS-74 machine, the automation had a long stroke of the gas piston. At the same time, the nominal length of the barrel, 415 millimeters, was maintained. It was possible to reduce the length to the required extent thanks to the use of a locking unit of a non-standard design - an L-shaped bolt that swung on a longitudinal axis with a transverse direction. At the same time, he locked the barrel with two stops insert from the receiver. Roll bolt carried out a preliminary rotation of the shutter. But the bolt was unlocked during the slide frame rollback at the end of the free stroke due to the shock interaction of the respective gate planes and the slide frame. At the same time, the first one turned to the left.

Through the use of such a scheme, it became possible to significantly reduce the length of the receiver. Despite this, the overrun of the bolt during the delivery of the cartridge from the store, was only half the length of the cartridge. Since the length of the receiver has significantly decreased (and hence the path of movement of the shutter with the slide frame), while maintaining the speed of movement of moving parts, the cycle time of the operation has decreased. This means that the rate of fire (when using a short but very solid buffer spring) was significantly increased - up to 1800 shots per minute.



The use of the firing mechanism in the Smerch machine gun made it possible to fire continuously, in short bursts of three rounds and in single shots. It did not provide for a change in the rate of fire. So that shooting could be carried out from the left shoulder, the changes in the direction of ejection of spent cartridges were also worked out. With practical shooting using a mock-up sample, an amazing result was discovered, especially noticeable when shooting from an unstable position. The efficiency of the new model has doubled when compared with the original AKS-74. It was also noted that, if necessary, sighting shooting could be conducted even with the use of one hand, thanks to the special layout of the weapon. The center of gravity was very well placed above the pistol grip, which ensured better handling. Despite the small length of the Smerch machine gun, it had enough space to install a collimator or optical sight on the gas tube. However, this was not officially welcomed due to the fact that the side plate was considered “Gostovskaya”.

Since TVILU did not have its own production facilities, it was decided to contact the management of the TsKIB LLC of the city of Tula in order to get assistance in promoting the project of the new machine. Alas, a refusal was received indicating the reason that the TsKIB was too busy. Therefore, it turned out the way it turned out - by 1980, the usual AKS-74U was adopted, which became the usual type of weapons for many branches of the military.

Source:
Magazine "Kalashnikov"
29 comments
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  1. Sirozha
    Sirozha 11 October 2013 09: 23
    +7
    Hmm, we have always skillfully promoted the old, and, as always, everyone doesn’t give a damn about really modern offers! The Soviet production colossus was swinging heavily for something new ... Perhaps that is why we still drive new-old Lada ...
    1. ShturmKGB
      ShturmKGB 11 October 2013 09: 50
      +2
      An interesting machine, touches by the large presence of wood, well, at that time it was the norm ...
      1. air wolf
        air wolf 11 October 2013 16: 02
        +1
        Yes, interesting, but the AK-12 will also be, although the same gamma as the AK-74. There are many talents in Russia, it’s time to sell all Kalash’s and issue a normal apparatus for money.
  2. GRusl
    GRusl 11 October 2013 09: 47
    +3
    Explain what kind of nonsense in the photo? Where is the machine itself? I see only some rough wooden model.
    1. luiswoo
      luiswoo 11 October 2013 10: 03
      +3
      I suspect that it simply didn’t go beyond the prototype of automation and layout.
  3. luiswoo
    luiswoo 11 October 2013 09: 58
    0
    This means that the rate of fire (when using a short but very solid buffer spring) was significantly increased - up to 1800 rounds per minute.

    There is a question of reliability - Nikonov and Stechkin, had to build a fire monitor system for such a rate of fire, and then two rounds each. It could not have surfaced again, if all was well.
    It's funny why, all bullpups of automatic rifles are necessarily shorter than AK, in principle, you can fit an automatic rifle with a normal rifle barrel, six hundred millimeters in diameter, with all the consequences ...
    1. Assistant
      Assistant 11 October 2013 21: 53
      +1
      It’s interesting why, all bullpups of assault rifles are necessarily shorter than AK, in principle, an automatic rifle can be entered in its dimensions


      These are not bullpapes made shorter than AK, this was given a task for the machine much shorter than AK, and the developers, in order not to reduce the barrel length (since the standard cartridge 5,45 * 39 is designed for a certain barrel length, and indeed, the longer barrel, all other things being equal, and if no frills, or rather a bullet flies) they took the bullpup scheme.
      And in the bull-pop scheme, there are long-barreled rifles (IEDs, ASVK, etc.). There is a long barrel ...
      1. luiswoo
        luiswoo 13 October 2013 00: 10
        0
        Quote: Assistant
        These are not bullpapes made shorter than AK, they issued a task for the machine much shorter than AK,

        Actually, I’m doing it, and it wasn’t said about the freak from the article (rather, this competition was ugly), but about the fact that all Russian bullpapes 5,45x45 do not make with a barrel longer than 415 mm. And in the case of IEDs, by the way, the barrel length is 520 mm versus 620 mm SVD, which is strange ...
        Quote: Assistant
        and indeed, the longer the barrel, the ceteris paribus and if no frills, more precisely a bullet flies)

        Here I am talking about the same thing, with A-91, for example, add 415 mm to standard 200 mm barrel - accuracy and accuracy will be no worse than emka (more gas selection, however, needs to be done closer to the muzzle), the balance will improve, while the dimensions will not surpass the AK with the butt out.
        1. Kurkin
          Kurkin 13 October 2013 10: 17
          0
          Quote: luiswoo
          Russian bull dads 5,45x45

          What is this new cartridge?
          1. luiswoo
            luiswoo 14 October 2013 00: 24
            0
            * 5.45x39 - typo :)
  4. 505506
    505506 11 October 2013 10: 13
    +2
    I have not heard anything about such weapons. Thank!
  5. understudy
    understudy 11 October 2013 10: 27
    +1
    It didn't go further than the layout. I read about it in the magazine ... "Arms" or "Kalashnikov". request
  6. aszzz888
    aszzz888 11 October 2013 11: 13
    +1
    Because the layout, that it didn’t go any further. But there could be another. But it is difficult to break into the market through eminent gunsmiths. This is the WORLD of weapons, with its laws.
  7. alex-cn
    alex-cn 11 October 2013 11: 19
    0
    the site wrote about this weapon not so long ago, why repeat it?
  8. the47th
    the47th 11 October 2013 12: 01
    +1
    The TKB-022 had a similar shutter design.
  9. kafa
    kafa 11 October 2013 12: 47
    +2
    scary not beautiful not convenient sample. and design decisions are tested by a bayonet (does not concern gamers)
  10. Tan4ik
    Tan4ik 11 October 2013 13: 01
    0
    Nice. Compact, for special forces at close range something (well, for the Airborne Forces as a weapon of self-defense. Although I may be wrong)
  11. kafa
    kafa 11 October 2013 13: 10
    0
    Quote: Tan4ik
    Nice. Compact, for special forces at close range something (well, for the Airborne Forces as a weapon of self-defense. Although I may be wrong)

    and how do you think lol
  12. Rosomaha67
    Rosomaha67 11 October 2013 17: 32
    +3
    ...... for the "approving" - if things did not go beyond the layout, then why such confidence in the stable operation of this sample. I can immediately name several controversial decisions from the photo. 1st. The location of the cocking lever from above, as I understand it, does not dissociate with it when the bolt carrier moves, so having such a "jumping" element in front of your eye at a frequency of 1800 times per second is not very convenient for shooting. 2nd. The ejection of the liner almost near the ear, here you have all the delights from the outflow of the remaining powder gases and the flight of hot liners past the head, also an element not conducive to accurate shooting ... so the design is certainly original, but in my opinion its viability is a big question ... besides, if the editors would put on the site all projects ever developed by all students, cadets, etc. including the designers of our design bureaus, military schools, institutes and technical schools, then there would be so much materials that the rest could not have been written ........ at one time I came across a similar number of compressor developments, only in the archives of our The university kept about 700 design developments, I can imagine how many there are in all of Russia. Not everything that is being developed makes sense even to implement in a really working sample ...
  13. crambol
    crambol 11 October 2013 19: 56
    0
    Quote: GRusl
    Explain what kind of nonsense in the photo? Where is the machine itself? I see only some rough wooden model.

    Listen, dear! It’s not you who accidentally at the arms exhibition in the late 90s barked at the pavilion’s leadership: Remove this dirt! And it was an excellent development of the youth department of one very respected design bureau.
  14. ramsi
    ramsi 11 October 2013 21: 05
    +1
    no, well, everything seems to be competent, but he is somehow not good ... like all bullpups. I continue to adhere to my opinion that for the auxiliary forces, it is better to have a PP like "Uzi"
    1. mirag2
      mirag2 12 October 2013 05: 19
      0
      And the PP-2000? I think that it is clearly better. Of course, the cartridge in it is much more powerful, but it is also more convenient.
      Or P-90? ​​Better yet, the range of fire is higher, the recoil is lower, the chamber is small and powerful (as in our PSM it is also small and powerful). And the ammunition is large.
      1. ramsi
        ramsi 12 October 2013 09: 01
        0
        p-90 - it’s too exotic, as for pp-2000, I don’t understand why not to make the folding butt telescopic (and it would be nice to use a simple, natural movement - pushing it behind both handles)
  15. GastaClaus69
    GastaClaus69 12 October 2013 02: 08
    +2
    I immediately remembered.
  16. Leader
    Leader 12 October 2013 09: 47
    +2
    Quote: air wolf
    the same gamma as the AK-74. There are many talents in Russia, it’s time to sell all Kalash’s and issue a normal apparatus for money.

    What kind of fashion went to find fault with AK? ... An excellent machine gun, just for our country and our soldiers (and taking into account our support services). I have never heard that he refused someone - and this is the most important thing, his super-reliability. But in the picture in the article - a design ugliness; something like a modern uniform - everything is changed, changed, and the best camouflage was and remains "Birch" and a couple of similar "Afghan women" from the 80s ...
  17. DesToeR
    DesToeR 12 October 2013 10: 54
    0
    Give an article about the Stechkin submachine gun in the Abakan contest, an interestingly interesting machine
  18. Slavs
    Slavs 12 October 2013 19: 40
    +1
    I liked the layout, it is a pity there are no prototypes in order to identify real, not imaginary flaws ...
  19. crambol
    crambol 12 October 2013 20: 17
    +1
    Quote: Slavs
    I liked the layout, it is a pity there are no prototypes in order to identify real, not imaginary flaws ...

    A very sensible idea, which, unfortunately, does not often come to those who are required by job to identify new developments. Unfortunately, the prohibitive principle continues to apply. He said YES, you will answer in case of failure. He said NO, no one will remember the poor fellow inventor.
  20. LAO
    LAO 12 October 2013 20: 59
    0
    It is interesting to see the diagram. In the description, not everything is clear with kinematics.
  21. Ckyf
    Ckyf 13 October 2013 16: 04
    0
    Quote: air wolf
    Yes, interesting, but the AK-12 will also be, although the same gamma as the AK-74. There are many talents in Russia, it’s time to sell all Kalash’s and issue a normal apparatus for money.

    What annoys you so much in AK, which is recognized by ALL world experts as the best small arms of the 20th and early 21st centuries?
  22. Ckyf
    Ckyf 13 October 2013 16: 22
    +1
    The specified machine gun is clearly not viable - ejection of cartridges near the ear, did not understand how it is possible to fire from lying or from the belt, it is practically impossible to fire in motion, additional emphasis is needed to reload the store, etc.
    1800 rpm from the realm of science fiction for the quote "the automation had a long stroke of the gas piston ... to fire continuously, in short bursts of three rounds and single shots. At the same time, no change in the rate of fire was envisaged" - the accuracy of shooting from the anecdote "forty barrels and that's it the sky in parrots .. "?
  23. BITL_DJUS
    BITL_DJUS 17 October 2013 02: 29
    0
    Layout, ill-conceived.
  24. SAFON 1
    SAFON 1 7 November 2013 19: 17
    0
    For some reason, no one tries to put a screw magazine on bullpups, or to develop a cartridge for their version of the weapon. The author also licked the "military genius" - why are these drooling? Suffice it to say that it is a pity for a new weapon, Izhtochmash is a monopolist and will die, and the monopoly will be defended to the end by any means .. For! no need to strain, and the money for the weapon flows to the monopolist!