RU2225974C1 - Method imparting rotation to bullet or other projectile and firearm complex for its implementation - Google Patents

Abstract

FIELD: smooth-bore shells and small-arm projectiles, specifically, hunting complexes " weaponammunition ". SUBSTANCE: in compliance with invention jets of gunpowder gases formed by burning of propelling charge act from behind on projectile provided with at least one turbine with inclined blades that is mounted in rear part of projectile and oriented with inlet towards space behind projectile. Jets are generated mainly by transformation of static pressure in space occupied by projectile to essentially dynamic pressure. Jets interact with turbine and projectile bottom causing simultaneous translatory and rotary motion of projectile in bore starting from breech chamber. Proposed firearm complex includes small-arm or artillery weapon, propelling charge, projectile and partition separating projectile from charge. Partition is perforated with assemblage of through holes oriented longitudinally which diameter is smaller than partition thickness by factor of four as minimum and is installed without any possibility of axial movement under action of gunpowder gases beyond limits of breech chamber and turbine is oriented with its inlet towards space behind projectile. EFFECT: enhanced efficiency of imparting rotation to projectile in smooth bore thanks to kinetic energy of gunpowder gases and growth of efficiency in proportion to growth of caliber of weapon. 7 cl, 5 dwg

Description

The group of inventions relates to smooth-bore artillery and rifle guns, in particular hunting, weapon-ammunition complexes, to stabilizing the flight of shells or bullets by rotating them around a longitudinal axis.

To give the shells and bullets rotational motion around the longitudinal axis ("giving rotation", "twist"), in order to stabilize their flight, use various methods.

The main one is screw cutting of trunks (the use of rifled trunks), which was theoretically substantiated by I.G. Leitman in 1728, and is widely used both in artillery [1] and in rifle (including hunting) complexes [2]. In this case, the “twist” occurs only within the threaded part of the barrel, i.e. within internal ballistics. Subsequently, the rotational motion acquired in the barrel is inhibited by the oncoming air flow.

For smooth-bore weapons, the rotation of shells and bullets provides the design features of the latter.

Known methods for imparting rotation to a pool by organizing the interaction of a turbine (with inclined blades or ribs) are part of a bullet with a stream of oncoming air, the speed of which in a stationary atmosphere is equal to the speed V of the bullet, starting from the initial speed V ₀ behind the muzzle end of the barrel. Accordingly, a separate classification subgroup of bullets - arrow-turbine and turbine [2, p.115-125]. In this case, the turbine is oriented by its entrance forward, towards the movement of the projectile, and its position along the length of the bullet can be any: - external head [3, p.5, 25, Fig.7];

- external average (bullets of Yakan and Brenneke [2, p.116-118, 127, fig. 26, 27]);

- inner central (bullet “Ideal” [2, p.122, 127, fig. 28]);

- their variety with tangential output channels [4];

- internal peripheral (BS bullets [2, p.124-125, 127, Fig. 30]);

- with a combination of external and internal positions (“double turbine” Mayer bullet [2, p.123-124, 127, 278, Fig. 29, 62]);

- with an external tail, and on the inseparable part of the wad-stabilizer polyethylene (Polev's bullet [5, 6, 2, p. 101, 103, 107, fig. 18, 63]).

All of the above methods ensure the spin of the bullet only behind the muzzle end, i.e. within the limits of external ballistics, and in some cases with the initial “dead zone” (the “Ideal” bullet), and bullets with a turbine oriented forward by the entrance and worsening the streamlining are hindered by the oncoming air flow. In addition, such bullets are sensitive to minor obstacles.

Closest to the claimed method for the intended purpose and the set of essential features (prototype method) is a method of imparting rotation to a bullet projectile, in which a bullet projectile equipped with a turbine is informed of translational motion, affecting its bottom with powder gases generated during the combustion of a propellant propellant charge entering in the composition of the ammunition for firearms, and thereby provide a rotating, around the longitudinal axis, the effect of the gaseous medium flow on the blades of the turbine [2, p. 115 (7 Lednov lines) - 125].

The method is described in the appendix to the hunting firearm. Hunting rifles are considered as firearms, and as ammunition for them, including a powder propellant charge, one or more fireproof wad (baffles) and a bullet shell (bullet), - unitary loading cartridges [2, p. 28-59, 281 , 283, 289, Fig. 63]. Under the gaseous medium is meant atmospheric air within the external ballistics of a bullet projectile (hereinafter referred to as “the projectile”).

However, this method is possible only, at best, on the entire section of the external trajectory and is not implemented at the stage of movement along the bore, where the pressure of the powder gases in the charging chamber and in the rest of the bore in the existing weapon-ammunition firearm systems has mostly static in nature. In the atmosphere, the oncoming air flow equal to the velocity V of the bullet (starting from its initial velocity V ₀ ) is significantly lower than the velocities of the powder gases leaving the barrel. In addition, inevitably the braking of a bullet projectile with an aerodynamically unfavorable position of the turbine, as well as deviation of the trajectory and / or deployment with minor obstacles, such as vegetation.

All this leads to the lack of effectiveness of the prototype method as a way to stabilize the flight of a projectile, increase the ballistic qualities of the firearm "weapon - ammunition", accuracy and lethality of the shot.

A well-known firearms complex, noteworthy as a fairly close analogue of the claimed device for implementing the proposed method, containing firearms (a hunting rifle), a propellant projectile charge and a bullet shell (bullet) equipped with a turbine with inclined blades in its tail part (more precisely, an inseparable part) wad-container) [2, p.101, 103, 107, fig. 18.63]. A bullet shell (Poleva's bullet) is described in more detail in patent materials [6].

However, it does not have any partition separating the projectile from the propellant charge, because the projectile itself contains an inseparable wad container that provides a fairly good obturation of powder gases, and the sign “turbine tail arrangement” is somewhat arbitrary, because its location can, in principle, be attributed to the central one (and therefore this complex is not mistaken for a prototype device).

Closest to the claimed device for implementing the inventive method of imparting rotation to a bullet or other projectile for the intended purpose and a set of essential features (prototype device) is a firearm containing a small arms (hunting rifle), a propellant propellant charge and a bullet shell (bullet), equipped impellers with inclined blades partially located in its rear part (the impeller is completely organized inside the through central channel in the projectile), and fireproof baffle (system sequentially installed cardboard and the felt wads) separating the projectile from the propellant [2, s.123-124, 277-279, at p.278 Fig.62].

However, using the prototype device, the claimed method cannot be carried out, since the turbine is directed with its entrance forward, and not toward the projectile space, where the source of powder gases is located (and therefore, it will not work from powder gases even converted to longitudinally oriented jets , moreover, powder gases would burst through the through channel, and would not effectively push the projectile out of the barrel); the pressure of the products of combustion of the propellant charge in the projectile space is mainly static and there are no technical means for its effective conversion into pressure, mainly dynamic, in the form of longitudinally oriented jets.

In addition, the rest, large parts of the turbines (turbine complex) would inhibit the translational and rotational movements of the projectile under the conditions of oncoming air flow at the internal and external stages of ballistics.

The prototype device (as well as other analogues) also has other very significant drawbacks.

The energy of the powder gases is used to communicate to the projectile the acceleration is not efficient enough: mainly through static pressure in the projectile space. Accordingly, the possibilities of increasing the initial velocity of the projectile while maintaining the mass of the propellant charge, and hence the power of the shot, or reducing the mass of the propellant charge while maintaining the initial velocity of the projectile, are not sufficiently used. In addition, a significant fraction of the residual energy of the powder gases after the projectile leaves the bore determines, firstly, the presence of a muzzle flame, unmasking the position of the gun (and, accordingly, the need to use a flame arrestor in some cases), and, secondly, gas-dynamic noise ( and, accordingly, the need to use devices to reduce its level). It should also take into account the problem of obturation of powder gases with its static nature.

The problem to which the invention is directed is to increase the efficiency of the method of imparting rotation of a projectile for a smoothbore firearm by ensuring the projectile rotates in a smooth bore due to the kinetic energy of the powder gases, as well as providing the possibility of implementing such a method in a firearm.

The solution to this problem is achieved by the fact that in the method of imparting rotation to a bullet or other projectile, in which a projectile equipped with at least one turbine is driven forward, acting on its bottom with powder gases generated during the combustion of the propellant propellant charge included in the composition ammunition for firearms, and thereby provide a rotating, around the longitudinal axis, effect of the flow of a gaseous medium on the blades of the turbine, it is affected by jets of the specified powder gases, pa allelic longitudinal axis of the projectile, with its orientation impeller inlet in the direction opposite to the translational motion of the projectile, the propellant gas jet is obtained by converting, into substantially static pressure in the volume occupied by the propelling charge, a pressure is primarily dynamic.

Since it is impossible to implement the inventive method using known devices, a firearms complex is proposed for its implementation, comprising firearms or artillery weapons, a propellant projectile charge and a bullet or other projectile equipped with at least one impeller with inclined blades in its rear part, and fireproof a baffle separating the projectile from the propellant charge, and in which the baffle is perforated with a plurality of longitudinally oriented through holes, the diameter of which is Chez septum thickness not less than 4 times, and installed without the possibility of axial displacement under the action of propellant gases beyond the bolt weapons and its impeller is oriented in the direction zasnaryadnogo input space.

The solution of this problem is also achieved due to additional structural features (with the above main set of features):

- the partition can be made with the maximum possible perforation coefficient according to the condition of the strength of the bridges between its holes, and the diameter of the holes is 1/5 of the thickness of the partition, which causes the maximum, other things being equal, conversion of the static pressure component into dynamic due to the maximum use of the partition area , as well as the optimal ratio (condition) of the formation of the most geometrically correct, stable jets at the exit of the perforation holes;

- the projectile can be equipped with a skirt, for example, the tail of its shell, while the skirt must cover the turbine, with a gap for the reversible exit of powder gases after interacting with the blades of the turbine and the bottom of the projectile, which will avoid a serious drawback of analog devices, namely increased braking rotational and translational movements of the projectile by oncoming air flow at the stage of external ballistics;

- the projectile can also be equipped with a wad or wad container, separated behind the muzzle of the weapon, while the turbine should be installed in the rear of the wad or wad container, and the outer diameter of the system of its blades should be equal to the caliber of the weapon, which, as an option, an alternative to a containerless shell, allows you to achieve the above positive result without screening the impeller from the outside with a skirt, and this will be accompanied by the possibility of increasing the outer diameter of the blade system, using them, to as a guide belt for a projectile to stabilize movement in the bore, as well as the possibility of increasing, in comparison with the previous case, the coefficient of perforation of the septum;

- the execution of the bottom of the projectile itself with at least one transverse rib or nest, and the bottom surface of the wad or wad container facing the projectile — with the reciprocal nest or edge, respectively, it is quite possible (technologically) to exclude the wad or wad rotation - container relative to the projectile.

Among the known methods and devices, no such combination of essential features would coincide with the claimed group of essential features. At the same time, it is due to the latter that a new technical result is achieved in accordance with the task.

The inventive method and device for its implementation is illustrated by drawings:

figure 1 schematically shows a method of imparting rotation to a bullet or other projectile, side view, where d is the caliber of the projectile (weapon), p, p _st and p _dyne are the pressure of the powder gases in the projectile space, respectively, the total, its static and its dynamic components ;

figure 2 shows a fire system for implementing the method of figure 1, a fragment of a longitudinal section showing the perforated septum as a means of converting the pressure of the powder gases, the variant with the septum belonging to the munition, where d ₀ is the diameter of the holes of the perforation of the septum, b is the thickness of the septum and simultaneously opening length (channel) of its perforations, δ - a current gap between the projectile and the bottom wall (actual length zasnaryadnogo space), p _1, p _{1st Class,} p _3, p and p _{2st 2din} - pressure of powder gases, respectively, ummar and its static component in space to accommodate the propellant charge, the total and its static and dynamic components in the projectile space;

figure 3 is the same, an option with the septum belonging to the charging chamber of the weapon;

figure 4 is one of the recommended designs (longitudinal section) of a bullet projectile, an option without wad or wad container, where d ₁ is the outer diameter of the turbine blade system, d ₂ is the inner diameter of the skirt screening the turbine, I is the length of the turbine;

figure 5 is another design option (longitudinal section) of a bullet projectile variant with a wad container, where d * <d is the outer diameter (caliber) of the body of the projectile with a shell with an outer diameter d of the wad container.

The method of imparting rotation to a bullet or other projectile consists in the following operations (see figure 1).

To projectile 1, equipped with at least one impeller 2 (with housing 3 and inclined, generally non-planar, blades 4) installed in its rear part and oriented by its entrance in the direction opposite to the forthcoming forward movement of the projectile (in other words, into the projectile space, in Fig. 1 to the left), they act from behind (i.e., to the bottom of the projectile 1) with jets of 5 powder gases generated during the combustion of the powder propellant charge (which is part of the munition for firearms).

In this case, jets 5 are obtained by converting mainly static pressure in the volume occupied by the propellant charge into pressure p = p _article + p _dyn , mainly dynamic: p ≈ p _dyn .

The jets 5 interact with the blades 4 and the bottom of the projectile 1 (including elements of the turbine 2) and, having “worked out” on the blades 4, exit, mainly in the peripheral annular zone of the projectile space, in the opposite direction (shown by arrows). The pressure forces on the blades 4 and the bottom of the projectile 1 are generally characterized by normal (along the longitudinal axis of the projectile 1) and tangential components.

Therefore, there is a complex movement of the projectile 1 in the channel of the barrel of the weapon, starting with its charging chamber 6 (within the ammunition shell and / or in front of it): simultaneously progressive (to the right in the drawing, which is shown by a double arrow) and rotational (around the longitudinal axis of the projectile 1 ), i.e. “Spin” of the projectile 1.

When the weapon leaves the bore (behind the muzzle), the powder gases continue to act on the turbine 2 and the bottom of the projectile 1 as a whole for some time, and then flies, rotating clockwise or counterclockwise (depending on the direction of inclination of the blades 4) by inertia, in conditions of resistance to the surrounding air. The “spin” of projectile 1 stabilizes its translational motion within the external ballistics.

In this case, we are talking about the interaction of the projectile 1 with two different “gaseous medium streams”: on the one hand, a combination of jets of 5 powder gases as the products of combustion of a propellant charge (mainly in the bore) and, on the other hand, a counter flow of atmospheric air having, conditionally, the speed V, where V is the projectile flight speed (mainly outside the bore).

The use of part of the energy of the powder gases to “spin” the projectile 1, due to the relative decrease in the “pushing effect”, will not lead (with a rational geometry of the turbine 2) to reduce the initial velocity V _{0 of the} projectile 1 and, accordingly, the power of the shot, because Pressure conversion, mainly to dynamic _dynes p, associated with a significant increase in the absolute value of the latter, and thus the normal component of the pressure force of the ejector shell 1.

To implement the proposed method of imparting rotation to the projectile 1, a Yaugonen firearm is proposed (by the name of one of the authors of this development).

The complex contains (see Fig. 2 or 3) a small arms or artillery weapon with a charging chamber 6, a powder propellant charge 7, a bullet or other projectile 1, and a fireproof, rigid partition 8 separating the projectile 1 from charge 7.

In the embodiment of FIG. 2, the baffle 8 is installed in the sleeve 9 of the unitary munition, which, in turn, is installed in the charging chamber 6, i.e. partition 8 belongs to the ammunition.

In the embodiment of FIG. 3, the partition 8 is installed directly in the charging chamber 6, i.e. belongs to weapons.

In both versions, the partition 8 is installed without the possibility of axial movement under the influence of powder gases (in the drawing, to the right) outside the chamber 6. In particular, as shown in figure 3, it can be fixedly mounted.

The partition 8 can be made as the front end wall of the metal glass container 10 (see figure 2) of thickness b, or disk (see figure 3), also of thickness “b”, with the chamber 6 being pressed against the stop 11 by the shutter 12 by tube (sleeve) 13 (performing, along with the axial fixation of the partition 8, the function of the amplifier of the cylindrical wall of the chamber 6).

In any of these variants, the partition 8 is necessarily perforated with a plurality of longitudinally oriented through holes 14, the diameter d _{o of} which (see FIG. 2) is four or more times less than the thickness b of the partition 8: b≥4d ₀ . The optimal ratio should be considered b = 5d ₀ .

In this case, the absolute size d ₀ must be less than the normalized (standard) minimum particle size of charge 7 (the width of the lamellar or the diameter of the tubular powder powder) with a loose structure of the latter (see source [1, С.183, Fig. 166]).

It is recommended that the partition 8 be made with the maximum possible perforation coefficient of its central zone opposite the impeller 2 (the ratio of the total area of the holes 14 to the area of the partition 8 at a diameter equal to the diameter d ₁ - see below), according to the strength condition - non-destruction of the jumpers between the holes 8 (calculation - by pressure p ₁ in the volume occupied by the charge 7).

The projectile 1 is equipped with at least one impeller 2, including a housing 3 and a system of blades 4 with an outer diameter d ₁ and a length I, mainly in the amount of six to eight, having, in general, a complex curved profile, and in the simplest case - in the form of inclined flat plates. The turbine 2 as a whole is located in the rear of the projectile 1 and is oriented with its entrance back into the projectile space.

Two main versions of the projectile are offered: without wad or wad-container (see FIG. 4) and with a detachable wad-container (see FIG. 5) or wad (similar to the embodiment of FIG. 5, but without petals covering the striking element) .

In the first embodiment (an example of an expansive bullet projectile, i.e., a bullet), the bullet heavy body 15 (lead) is enclosed in a shell 16 (brass, copper, copper-plated steel), which cantilever extends beyond the body 15, forming a skirt 17 with an inner a diameter of d ₂ covering the lateral cylindrical part of the projectile space. The turbine 2 is attached to the bottom of the body 15 with a centrally located screw or a “nut - stud” walled up in body 15 connection 18 so that it is completely located in the indicated part of the projection space. The difference of 0.5 (d ₂ -d ₁ ) determines the annular gap between the blades 4 and the skirt 17 for the exit of the "gaseous medium" spent in the turbine 2. For the normal organization of the gas flow in the turbine 2, its bottom 19 and the free (open) part of the bottom surface of the bottom of the body 15 of the bullet 15 are made non-planar, with a smooth transition. The center of mass of the bullet is shifted forward and is located approximately on the first third of its length.

In the second option (also an example of an expansive bullet projectile), projectile 1 consists of two parts - a sub-caliber (or smaller than that of a weapon, caliber d *) bullet itself (body mentioned above) with body 15 and shell 16 (without skirt 17) and a wad container 20 covering it (polyethylene and / or plastic), including a tray with petals (collectively a glass) and a shank with blades 4 (collectively a turbine 2, where the pallet and shank are body 3).

In this case, the maximum diameter of the wad container 20 is equal to the caliber d of the projectile as a whole (and weapons), and the diameter of the turbine is 2 d ₁ = d, which gives its blades 4 an additional function of the guiding ribs when moving in the sleeve 9 and / or the bore (see figure 2, 3).

In the wad container 20, an obturating ring sample 21 may be provided.

For a more reliable fixation of the wad-container 20 from turning relative to the more inertial bullet 15-16 itself, it is recommended that the bottom of the last one, with two crosswise or with a large number of transverse nests 22, and facing the pool 15-16 the bottom surface of the wad-container 20 - with reciprocal ribs 23. A connection (lock) of this type is also possible with the “mirror” version - “rib on the pool (projectile) - nest in the wad-container”. In the axial direction, the bullet 15-16 is held in the wad-container 20, mainly, the forces of its friction with the petals.

Thus, in the proposed device for implementing the inventive method, the tail turbine 2 is a means of “spinning” the projectile from the rear, in the barrel channel, starting from the cavity of the charging chamber 6, with jets of powder gases 5, and a specially perforated baffle 8 is a means of producing gas jets 5.

The described method of “twisting” the projectile and examples of the structural embodiment of the device for implementing this method do not exclude other possible options within the framework of the claims.

The proposed device according to figure 4 works as follows (with the implementation of the proposed method of imparting rotation to the projectile 1).

When the propellant charge 7 is burned, the powder gases in the space in front of the partition 8 flow through the openings 14 into the projectile space. In accordance with the Bernoulli equation and due to the rational, empirically obtained ratio of the thickness b of the partition 8 and the diameter d _{0 of the} holes 14 of its perforation (including the optimal ratio b / d ₀ = 5), the pressure is mainly static (multidirectional in dynamics) p ₁ (p _1st ) behind the partition 8 is converted into a dynamic, mainly pressure p ₂ : p _3din >> p _2st (see _figure 1-3). Powder gases, having formed in the system of openings 14 into parallel jets 5, move as well in the projectile space after the baffle 8, exerting dynamic pressure on the bottom of the projectile 1 and, therefore, on the blades 4 of the turbine 2. This simultaneously forces the projectile 1 out of the bore and rotation of the turbine 2 (blades 4 together with the housing 3), and hence the entire projectile 1 in the barrel channel around the longitudinal axis with angular acceleration. The minimum, according to the strength conditions, the distance between the holes 14 provides a minimum of turbulent influences from the gases located between the jets 5, which allows you to save the formed nature of the flow longer. In the increasing gap δ between the baffle 8 and the projectile 1 within 8d (also experimental data), there is no significant turbulization and a decrease in the dynamic component p _2din in the total pressure p ₂ .

The “waste” powder gases in the turbine 2 are thrown back, mainly through the annular gap δ under the skirt 17 (in the embodiment of FIG. 4) or along the periphery of the projectile space directly along the walls of the bore (in the embodiment of FIG. 5).

In the latter case, the blades 4 on the diameter d ₁ = d, increasing the total length of the guide elements in the channel, increase the stability of the movement of the projectile 1 within the internal ballistics.

Due to the presence of the joint (lock) 22-23 (in addition to the moment of friction forces), the torque on the turbine 2 is transmitted from the wad-container 20 to the actual pool 15-16 without turning.

In both versions of the design, the projectile 1 after the muzzle cut of the barrel, most of the trajectory continues to rotate by inertia.

Moreover, in the embodiment of FIG. 4, the skirt 17, shielding the turbine 2 from the oncoming air flow, significantly reduces the moment of resistance to rotation of the projectile.

In the embodiment of FIG. 5, the problem of resistance to rotation is reduced almost to nothing by separation of the wad container 20 with turbine 2 almost immediately after the muzzle.

Thus, the implementation of the claimed group of inventions allows to increase the efficiency of the method of imparting rotation to a bullet or other projectile for smooth-bore firearms, because, in contrast to prototypes and other analogues using an oncoming air flow at the stage of external ballistics, rotation in this case occurs already in the smooth bore channel, directly due to the energy of the powder gases, at gas flow rates (jets) significantly exceeding the velocity module V of the oncoming air flow at the projectile exit for the muzzle. Accordingly, it becomes possible to eliminate the inhibitory effect of the oncoming flow on the projectile, as well as a significant dependence of the trajectory on minor obstacles in the path of the projectile (both of which are shielding the turbine from the oncoming flow, and restoration of the projectile streamlining). Moreover, the design of the projectile becomes more technological and does not conflict with the requirements for the head of the projectile from the standpoint of impact on the target. Turbine shells (bullets) with the proposed design features (see Fig. 4, 5) are technological and cheap in large-scale and mass production. They are quite simply converted into non-turbine ones and vice versa, which corresponds to the principles of unification and standardization. The invention helps to combine the advantages of smoothbore and rifled gun systems.

There are a number of other, side positive effects that are not directly related to the "twist" of the projectile.

It is necessary to take into account the presence of a large-scale factor: with the growth of the caliber d of the complex, the efficiency of using this invention increases. Therefore, it is recommended to use it both in hunting firearms and in artillery complexes.

The stated positive effectiveness of the invention is based on experimental data obtained with the participation of the authors.

Sources of information

1. Nadin V.A., Skorik I.A., Shegeryan V.M. Artillery. - M .: Publishing House DOSAAF, 1972, 335 p., Ill., P. 37, 91, 93-97.

2. Trofimov V.N. Hunting ammunition and hunting rifle cartridges equipment. - Minsk: 000 “СЛК”, 1996, 320 p., Ill., P. 145-172, 313.

3. SU 1808114 A3, F 42 B 5/03, 12/34, 05/10/1990.

4. SU 1828994 A1, F 42 B 10/12, 08/08/1990.

5. FR 2487063, F 24 B 7/08, 1982.

6. SU 1141293 A, F 42 B 11/02, 07/11/1983.

Claims (6)

1. A method of imparting rotation to a bullet or other projectile, in which a projectile equipped with at least one impeller is provided with translational motion by exposing its bottom to the powder gases generated by the combustion of the propellant propellant charge that is part of the munition for a firearm, and thereby providing a rotation of the gaseous medium flow around the longitudinal axis on the turbine blades, characterized in that the blades of the turbine are affected by jets of said powder gases parallel to the the longitudinal axis of the projectile, when the turbine is oriented with its entrance to the side opposite to the translational motion of the projectile, while the jets of powder gases are obtained by converting mainly static pressure in the volume occupied by the propellant charge into pressure, mainly dynamic. 2. A firearm complex for imparting rotation to a bullet or other projectile, containing firearms or artillery weapons, a propellant propellant charge and a bullet or other projectile, equipped with at least one impeller with inclined blades in its rear part, and a fireproof partition separating the projectile from a propellant charge, characterized in that the partition is perforated with a plurality of longitudinally oriented through holes, the diameter of which is less than 4 times less than the thickness of the partition, and no h the possibility of axial movement under the influence of powder gases beyond the charging chamber of the weapon, and the turbine is oriented by its entrance towards the projectile space. 3. The complex according to claim 2, characterized in that the partition is made with the maximum possible perforation coefficient according to the condition of the strength of the jumpers between its holes, and the diameter of the holes is 1/5 of the thickness of the partition. 4. The complex according to claim 2, characterized in that the projectile is equipped with a skirt, for example a tail portion of its shell, while the skirt covers a turbine with a gap for reversing the exit of powder gases after interacting with the blades of the turbine and the bottom of the shell. 5. The complex according to claim 2, characterized in that the projectile is equipped with a wad or wad container, separated behind the muzzle of the weapon, while the turbine is installed in the rear of the wad or wad container, and the outer diameter of the system of its blades is equal to the caliber of the weapon. 6. The complex according to claim 5, characterized in that the bottom of the projectile itself is made with at least one transverse rib or nest, and the bottom surface of the wad or container wad facing the projectile is with a reciprocal nest or rib, respectively, excluding rotation wad or wad container relative to the projectile.

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