WO2006043856A2 - Projectile pour arme a feu ou arme pneumatique - Google Patents

Projectile pour arme a feu ou arme pneumatique Download PDF

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Publication number
WO2006043856A2
WO2006043856A2 PCT/RU2005/000513 RU2005000513W WO2006043856A2 WO 2006043856 A2 WO2006043856 A2 WO 2006043856A2 RU 2005000513 W RU2005000513 W RU 2005000513W WO 2006043856 A2 WO2006043856 A2 WO 2006043856A2
Authority
WO
WIPO (PCT)
Prior art keywords
projectile
tail
bullet
projectile according
cone
Prior art date
Application number
PCT/RU2005/000513
Other languages
English (en)
Russian (ru)
Inventor
Gennadi Stanislavovich Bondarenko
Igor Valentinovich Bobrikov
Original Assignee
Bondarenko Gennadi Stanislavov
Igor Valentinovich Bobrikov
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bondarenko Gennadi Stanislavov, Igor Valentinovich Bobrikov filed Critical Bondarenko Gennadi Stanislavov
Publication of WO2006043856A2 publication Critical patent/WO2006043856A2/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/04—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/32—Range-reducing or range-increasing arrangements; Fall-retarding means
    • F42B10/38—Range-increasing arrangements
    • F42B10/42—Streamlined projectiles
    • F42B10/44—Boat-tails specially adapted for drag reduction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/32—Range-reducing or range-increasing arrangements; Fall-retarding means
    • F42B10/38—Range-increasing arrangements
    • F42B10/42—Streamlined projectiles
    • F42B10/46—Streamlined nose cones; Windshields; Radomes

Definitions

  • the invention relates to ammunition for small arms. State of the art
  • the conventionally-shaped weapon shells have a sharpening, or rounding in the head, (although there are shells with a different shape of the head) and a flat tail.
  • a bullet for rifled weapons is known [RF Patent N ° 2151371], containing a shell and lead filling.
  • the front part of the shell of the bullet is pointed and made in the form of a cone-shaped surface of revolution formed by an arc of a circle.
  • the middle part of the shell of the bullet has the shape of a cylinder. From the side of the tail end, the shell is made in the form of a cavity formed by the front surface of the shell and the end surface of the lead filling.
  • the disadvantage of this bullet is the vacuum braking of the bullet that occurs during its movement, which reduces its speed, reduces its flight range and reduces its breakdown power. Also, the braking of the bullet and the reduction of its breakdown force is facilitated by the shock wave formed along the edge of the tail of the bullet.
  • a core installed in the head and central part of the shell, the firing pin, the explosive charge and the igniter caps [RF Patent N °
  • the disadvantage of this bullet is the presence of the aforementioned vacuum braking during its movement and shock wave, which reduce the speed of the bullet, reduce the flight range and reduce its breakdown power.
  • a known bullet having leading belts on the surface of the shell, a pointed warhead with a radius revived 7 .73 - 8.45 bullet caliber and flat end face [RF Patent Ns 2206052], designed to increase the effectiveness of manpower destruction, protected by means of individual armor protection.
  • This bullet has the same disadvantages as the bullets described above.
  • Vacuum braking of shells having a flat end instead of the tail part is due to the fact that when such a shell moves in the air
  • the medium separates the aforementioned air from the end of the projectile, resulting in the formation of a cone-shaped body of revolution, inside which there is a strong vacuum, moreover, in the layers closest to the end, close to the vacuum, here called the “discharge”.
  • the presence of vacuum from the side of the end of the projectile forms a force directed against its movement, which causes negative acceleration, leading to a decrease in the velocity of the projectile - vacuum braking.
  • FIG. 1 is a flying projectile
  • 2 is a vacuum cone.
  • the firing range and the breakdown power of the projectile are reduced.
  • a similar picture arises with the movement of shells having a head part, a middle part and a pronounced tail part, made in the form of a short truncated cone.
  • a bullet for firing sniper rifles [RF Patent N ° 2075036].
  • the bullet contains a shell with sequentially placed lead and steel cores in it.
  • the head part of the shell of the bullet is made in the form of a conical surface of revolution formed by a parabola.
  • the middle part of the shell is made in the form of a cylinder.
  • the tail of the bullet has the shape of a short truncated cone, the generatrix of which is located at an angle of 9-12 ° to the line, which is a continuation of the generatrix of the cylinder of the middle part of the shell.
  • a cavity is made at the end of the bullet.
  • the disadvantage of this bullet is the presence of vacuum braking during its movement, which reduces the speed of the bullet, reduces the flight range and reduces its breakdown power. Also, shock waves are formed at the edge of the end face of the bullet and at the mates of the tail and central part of the bullet, which cause additional braking of the bullet.
  • the bullet contains a shell, a lead shirt and a steel core.
  • the bullet shell has a pointed front part, a cylindrical middle part and a tail part in the form of a short truncated cone with a hole on the side of the end face.
  • the disadvantage of this bullet is the presence of vacuum braking during its movement, which reduces the speed of the bullet, reduces the flight range and reduces its breakdown power. Also on the edge of the butt end of the bullet and on the mating surface of the tail and shock waves form in the central part of the bullet, which cause additional braking of the bullet.
  • Known armor-piercing sniper bullet having a shell, steel and lead cores located in it [RF Patent Na 2183007].
  • the body of the bullet has an oblong shape with a pointed front part, a cylindrical middle part and a tail part in the form of a short truncated cone with an opening on the side of the end face.
  • the disadvantages of this bullet are also insufficient in relation to the desired range of the bullet, and the breakdown force due to the mentioned vacuum braking and shock waves. Disclosure of invention
  • the invention solves the problem of creating a firearm projectile with an increased flight range and increased breakdown power.
  • a projectile including an elongated body provided with a head part and a tail part, characterized in that its tail part is made in the form of a conical surface of revolution.
  • a rotation surface is a surface described by the rotation of a plane curve around an axis lying in its plane [Mathematical Encyclopedia / Ed. THEM. Vinogradova, t. 1, - M: “Soviet Encyclopedia, 1982].
  • the conical shape means that the body has a rotation of the base in the shape of a circle and a sharp peak.
  • the head of the projectile can be made of any shape, depending on the tasks to be solved, for example, in the form of a cone-shaped surface of revolution, which is formed by an arc of a circle, or a parabola (Makarov bullet), or in the form of a hemisphere (intermediate cartridge of an assault weapon), which helps to prevent turbulent turbulence.
  • a cone-shaped surface of revolution which is formed by an arc of a circle, or a parabola (Makarov bullet), or in the form of a hemisphere (intermediate cartridge of an assault weapon), which helps to prevent turbulent turbulence.
  • the head can be made in the form of a truncated cone with a flat front platform (Smith-Wesson, action - express), or in the form of a cylinder whose diameter is smaller than the caliber of the projectile, with a flat front platform and mating with a truncated cone (windcutter), or a point mating with a truncated cone (THV).
  • the projectile can only have a head and a tail, and not have a central part, in which case the head and tail are mated around each other in a circle.
  • the projectile may also contain a Central part located between the head and tail parts, mating with each of them.
  • FIG. 2 shows the projectile of the proposed form, where: 3 - the head part, 4 - the central part, 5 - the tail part.
  • the central part can be made in the form of a multifaceted prism, however, to optimize the aerodynamic performance of the projectile, its central part is expediently performed in the form of a cylinder.
  • the surface of rotation of the cone-shaped tail of the projectile can be formed as a rotation of an arc of a circle, and part of the parabola, or a straight line.
  • a cone-shaped tail in the shell in any case increases its flight range and its breakdown force, since in any case it fills the discharge cone with itself and reduces the braking force.
  • This shape of the tail is either determined experimentally or calculated.
  • a projectile having a tail portion repeating in shape and size a discharge cone has the largest range and the largest breakdown force compared to similar shells that do not have such a tail portion.
  • the optimal length of the tail of the projectile is a value in the range of 1.5 - 3.3 caliber, mainly equal to approximately three caliber of the projectile.
  • the total length of the projectile can be the same as the length of the known projectiles, however, the ratio of the lengths of the head part, the middle part and the tail part should be changed in the direction of increasing the tail part, as shown in Fig. 3, where “a” is a traditional bullet forms, and “6” is the proposed bullet having the same mass, length, made of the same material, with the same warhead - 3, varying in length in the middle part - 4 and in varying length and shape in the tail part - 5, an obstacle through which a bullet passes, for example, a tree - 6.
  • the bullet of the proposed form has a smaller area of contact with the material of the obstacle. It is known that the larger the positive proportion of the ratio of the specific gravity of the projectile to the resistance forces of the material, depending on the area of contact of the piercing body with the punched material, the greater the efficiency of penetration. As can be seen from the figure, the area of contact with the obstacle material of the bullet - the prototype is higher than that of the bullet of the proposed shape, therefore, the braking forces acting on it are higher, therefore, the proposed bullet will go a long way in the obstacle.
  • its tail can be hollow, however, the penetration of the bullet in this case will be lower, since penetration is higher, the heavier the tail.
  • the top of the cone-shaped body of revolution forming the tail of the projectile should be as sharp as the top of the discharge cone - this is the best option for the projectile, since in this case the force of vacuum braking does not occur.
  • This shape of the tail does not prevent the use of traditional strikers intended for shells with flat ends, since explosive gases in any case push the projectile in a given direction, for example, a bullet along the barrel of a gun.
  • the projectile can be equipped with a case covering its body in whole or in part, which has a flat end to interact with the striker, and which disintegrates into parts in the air.
  • a wad of any design can be used.
  • the proposed shell works as follows.
  • the projectile shown in FIG. 2 shoot in the air.
  • the projectile moves forward, its head part pushes the air masses at high speed.
  • turbulent turbulence occurs and air must also detach from the end of the projectile.
  • the space of the discharge cone is filled with the tail of the bullet, made in the form conical body of revolution, therefore, for the occurrence of the aforementioned cone of vacuum there are no conditions, therefore, the force of vacuum braking also does not occur.
  • the shock wave also does not form on the surface of the projectile, since it sets mostly - around the circumference of the flat end of the projectile. As a result, the range of the projectile increases and its breakdown power increases.
  • the proposed form is effective for any shells: bullets, large-caliber and small-caliber shells intended for any weapon.
  • Bullets and shells for smooth-bore weapons in the presence of a cone-shaped tail portion acquire greater stability during movement relative to the same shells with flat ends, so in this case the tail portion plays the role of a stabilizer.
  • instability of the trajectory of the projectile - this is a huge disadvantage of smooth-bore non-reactive systems, both artillery and any others.
  • the USSR adopted the T-62 tank, in 1983 the T-62D and T-62M, in 1984 the T-62K, and in 1985 the T-62BM with the U5-TC smoothbore gun.
  • Shells of the proposed form can be made as solid (this applies to small-caliber shells, for example, bullets), and prefabricated, with a shell of the proposed shape containing, for example, a core, or other elements (this applies to small-caliber shells, and large-caliber shells) .
  • the tracer shells of the proposed form can be equipped with smaller holes in the tail for the gas, which creates the effect of glow than the known similar bullets with a flat end. The diameter of such a hole is from 1/45 to 1/18 bullet caliber.
  • shells having a tail made in the form of a cone-shaped body of revolution are characterized by increased range, increased breakdown force and stability of a given trajectory, while this does not require the creation of new weapon models and can be used for weapons of different calibers and models already available in mass production and arming.
  • Figure l shows a traditional projectile flying in the air, where: 1 - flying projectile; 2 - vacuum cone.
  • Figure 2 shows the proposed firearm, where:
  • FIG. 3 shows the entry into the obstacle of bullets, where a is a bullet of traditional shape; b- bullet of the proposed form;
  • the proposed projectile can be used in the military industry for the production of shells designed for smooth-bore and rifled weapons: pistols, machine guns, machine guns, rifles, guns, under barrel grenade launchers, etc. both for existing and new models of weapons.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

L'invention concerne un corps allongé comportant une partie tête et une partie queue, sa partie queue se présentant comme un corps de rotation conique.
PCT/RU2005/000513 2004-10-21 2005-10-19 Projectile pour arme a feu ou arme pneumatique WO2006043856A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2004130970/02A RU2004130970A (ru) 2004-10-21 2004-10-21 Снаряд для огнестрельного и пневматического оружия
RU2004130970 2004-10-22

Publications (1)

Publication Number Publication Date
WO2006043856A2 true WO2006043856A2 (fr) 2006-04-27

Family

ID=36203351

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2005/000513 WO2006043856A2 (fr) 2004-10-21 2005-10-19 Projectile pour arme a feu ou arme pneumatique

Country Status (2)

Country Link
RU (1) RU2004130970A (fr)
WO (1) WO2006043856A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220307806A1 (en) * 2021-03-24 2022-09-29 Jamie George McWilliam Bullet Stabilization in Subsonic Flight

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220307806A1 (en) * 2021-03-24 2022-09-29 Jamie George McWilliam Bullet Stabilization in Subsonic Flight

Also Published As

Publication number Publication date
RU2004130970A (ru) 2006-04-27

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