EP2636985B1 - Subcalibre projectile with improved head - Google Patents

Subcalibre projectile with improved head Download PDF

Info

Publication number
EP2636985B1
EP2636985B1 EP13157701.7A EP13157701A EP2636985B1 EP 2636985 B1 EP2636985 B1 EP 2636985B1 EP 13157701 A EP13157701 A EP 13157701A EP 2636985 B1 EP2636985 B1 EP 2636985B1
Authority
EP
European Patent Office
Prior art keywords
bar
diameter
projectile
tip
target
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP13157701.7A
Other languages
German (de)
French (fr)
Other versions
EP2636985A1 (en
Inventor
Nicolas Eches
Arnaud Guilloux
Richard Roy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nexter Munitions SA
Original Assignee
Nexter Munitions SA
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 Nexter Munitions SA filed Critical Nexter Munitions SA
Priority to PL13157701T priority Critical patent/PL2636985T3/en
Publication of EP2636985A1 publication Critical patent/EP2636985A1/en
Application granted granted Critical
Publication of EP2636985B1 publication Critical patent/EP2636985B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
    • F42B14/06—Sub-calibre projectiles having sabots; Sabots therefor
    • F42B14/068—Sabots characterised by the material
    • 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
    • F42B12/06—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 with hard or heavy core; Kinetic energy penetrators
    • 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
    • F42B12/08—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 with armour-piercing caps; with armoured cupola

Definitions

  • the technical field of the invention is that of sub-calibrated projectiles and in particular sub-calibrated projectiles of the shell type of large caliber shells (caliber greater than 75 mm).
  • Subcalibrated projectiles are well known. They consist of a bar made of perforating material, with a tapered front part, and carrying a stabilizing stabilizer.
  • the bar has a caliber much lower than that of the weapon which fires the projectile (bar diameter of 25 to 30 mm for a caliber of weapon of 120 mm).
  • the shot is made possible thanks to a hoof with the caliber of the weapon which releases the bar at the exit of the tube of the weapon.
  • One of the main problems encountered by the sub-calibrated projectiles is that of the perforation decrease related to an impact on the target with an impact (impact at an angle of the projectile with the target different from 90 °).
  • the diameter of the necking is substantially equal to the diameter of the bar while the diameter of the crater can be twice that of the bar.
  • the sub-calibrated arrow projectiles that are the subject of the invention are fired by a gun barrel and have an impact speed on a target of the order of 1700 meters per second.
  • the object of the invention is to propose a sub-calibrated arrow-type projectile having an arranged head structure which gives it a capacity of perforation which is little reduced by oblique impacts.
  • the subject of the invention is a sub-calibrated arrow-type projectile comprising a perforating rod extended by a conical part, and surrounded by a sabot made of light material and allowing the projectile to be fired into a weapon, a projectile characterized in that the part conical comprises a tip of heat-resistant material having a diameter less than half the diameter of the bar, the tip being connected to the bar by a support structure without ballistic effect, the bar having a front face substantially flat to the diameter of the bar .
  • the support structure comprises a block made of plastic or ceramic.
  • the support structure comprises a conical tubular sleeve of aluminum.
  • the support structure may comprise a foot connecting the tip to a median portion of the front face of the bar, the foot having a diameter less than a quarter of the diameter of the bar.
  • the foot may be surrounded by a tube of plastic or ceramic.
  • the figure 1 shows a projectile arrow 1 which comprises in a conventional manner a shoe 2 made of light material (such as an aluminum alloy), shoe formed of several segments and which surrounds a bar 3 sub-calibrated.
  • a shoe 2 made of light material (such as an aluminum alloy), shoe formed of several segments and which surrounds a bar 3 sub-calibrated.
  • the bar is made of steel or a dense alloy based on tungsten.
  • the bar comprises a conical front part 3a and carries at its rear part 3b a stabilizer 4 ensuring its stabilization on trajectory.
  • the shoe wears a belt 5, made of plastic material, which seals the propellant gases when firing into the barrel of a weapon (not shown).
  • the propellant charge gases (not shown) exert their thrust at a rear portion 6 of the shoe which is the caliber and which constitutes what is called the thrust plate.
  • the shoe 2 is intended to allow the shot of the projectile in the weapon. It consists of several segments (usually three) which surround the bar 3 and which are in contact two by two at joint planes.
  • Means form concordance (not shown), for example a thread, are interposed between the shoe 2 and the bar 3 to ensure the drive thereof.
  • the figure 2 shows more precisely an exemplary embodiment of a front portion 3a conical bar 3 for a projectile according to the prior art.
  • This front part is formed by a conical cap C which is made for example of steel to be able to withstand the heating on trajectory.
  • the cap has a cylindrical extension C1 which is positioned on a constriction R made at the front end of the bar 3.
  • the bar 3 is extended by several cylindrical portions E1, E2, E3 whose diameter is progressively decreasing from the bar 3 towards the front of the cap C.
  • This conventional structure is adopted to facilitate a progressive fragmentation of the structure of head to the impact on a target. This is described in particular by the patent FR2578045 .
  • the figure 3 shows the effect of the impact of such a projectile on a target 20.
  • the warhead C is destroyed during the impact and the stack E1, E2, E3 creates a front hole of diameter D R which is slightly greater at the diameter d1 of the bar 3.
  • the head of the bar expands inside the target and creates a hole whose diameter D is substantially equal to twice that of the bar d1 (D ⁇ 2d1).
  • the figure 4 shows a first embodiment of the invention.
  • the conical portion 3a has a tip 7 which is made of a heat-resistant material on the trajectory of the projectile, for example steel or a material identical to that of the bar 3, such as a tungsten alloy .
  • the tip 7 may also be made of a metal or a ceramic having a melting point greater than 1700 K.
  • This point 7 has a maximum diameter d2 which is less than half the diameter d1 of the bar. It extends over a length l which is between 20% and 50% of the total length L of the conical portion 3a.
  • the tip 7 is connected to the bar 3 by a light structure which is here formed by a block 8 of plastic.
  • the block 8 is fixed (here by gluing) at a flat front face 9 of the bar 3.
  • the tip 7 is fixed to the block 8, here by crimping.
  • the tip 7 door a cylindrical stud 10 which is housed in a corresponding hole of the block 8.
  • the tip 7 serves to ensure the heating resistance of the conical portion 3a during the ballistic trajectory of the bar 3. Its perforating efficiency is not important.
  • the resistance to thermal stresses related to the flight leads to choose, to achieve the tip 7, a high melting point material (melting temperature greater than 1700 K), for example steel or a tungsten alloy, or a ceramic.
  • the figure 5 shows this projectile at impact on a target 20. Due to the diameter of the tip 7 which is less than half the diameter d1 of the bar, the widening of the hole caused gradually by the tip does not exceed half of d1. The bar will then be able to impact the target 20 by its flat front face 9.
  • the tip 7 thus generates a pre-crater of diameter substantially equal to that of the tip (d2) and the block 8 is destroyed. Only the bar 3 has a perforating effect on the target. Its flat front face 9 and its diameter d1 lead to the realization of a cavity whose diameter will be substantially twice that (d1) of the bar.
  • the block 8 is non-existent and the projectile behaves as if it consisted of two distinct parts impacting consecutively the target: the point 7 and the bar 3. To say that the block does not have Ballistic effect means that it does not participate in the perforation.
  • the tip has a diameter between 0, 5d1 and d1
  • the head structure of the projectile according to the invention comprises only, at the end of the front conical portion 3a, an element (tip 7) providing the thermal shock resistance occurring during flight.
  • This resistant element must be as small as possible and it must not hinder the impact of the flat front face 9 of the bar 3 itself on the target. This is why the structure connecting this resistant tip 7 to the bar 3 must also be as light as possible.
  • the perforation performance is provided by the bar 3 alone whose front face 9 plane is at diameter d1 of the bar.
  • the conical part 3a in front of the bar does not participate in the perforation and must be eliminated on impact so as not to disturb the action of the bar.
  • a material without particular perforation capabilities will be chosen, for example a plastic material, such as polytetrafluoroethylene or another polymer.
  • the support structure 8 may also be made of a ceramic, such as aluminum nitride which has a very good thermal resistance and which is easily machinable. The heating of the support 8 is less than that suffered by the tip 7 itself. It will suffice to choose, for the support 8, a material having a melting point greater than 200 ° C.
  • the figure 6 shows another embodiment of the invention which differs from that of the figure 4 that by the presence of a cylindrical rod 11 to the rear face of the block 8. This rod 11 is positioned in a bore 12 formed at the front face 9 of the bar 3.
  • the figure 7 shows another embodiment of the invention in which the support structure is formed by a frustoconical sleeve 13 made of aluminum.
  • the sleeve 13 is hollow and delimits an empty space 14.
  • the sleeve 13 has a reduced thickness (of the order of one millimeter).
  • One of its functions is to ensure the aerodynamic profile of the projectile for its ballistic trajectory.
  • It also supports the tip 7 which, as in the previous embodiments, is made of a thermally resistant material, for example steel or a material identical to that of the bar 3, such as a tungsten alloy.
  • the tip 7 provides the thermal shock resistance occurring during the flight.
  • the tip 7 always has a maximum diameter d2 which is less than half the diameter d1 of the bar 3 and extends over a length l which is between 20% and 50% of the total length L of the conical portion 3a.
  • the sleeve 13 receives at its front portion the pin 10 of the tip 7 which can carry a thread.
  • the sleeve 13 comprises a cylindrical extension 16 which is positioned on a narrowing 15 made at the front end of the bar 3.
  • the diameter reduction of the bar 3 at the necking 15 has a negligible influence on the perforation performance.
  • the sleeve therefore has no ballistic effect on the target (it does not participate in the perforation).
  • the tip 7 and the sleeve 13 are ejected or destroyed. It is the bar 3 with its flat front face 9 which impacts the target and creates in it a perforation of diameter substantially equal to twice that of d1. This large diameter hole is obtained even with high incidence impacts. Perforation performance is therefore not reduced by impact impact.
  • the figure 8 shows another embodiment of the invention in which the support structure of the tip 7 comprises a foot 17 connecting the tip 7 to a middle portion M of the front face 9 of the bar.
  • the foot 17 can (as shown here) be made in one piece with the tip 7. It is fixed to the bar 3 by a threaded end 18 engaged in a tapping carried by the front face 9 of the bar 3.
  • the foot 17 is surrounded by a tube 19 made of plastic or ceramic.
  • This tube has an external conical profile and has the sole function of completing the ballistic ogive of the bar. It does not participate in the perforation and therefore has no ballistic effect. It is destroyed by the impact on the target.
  • the material of the tube 19 may be chosen from materials having a melting point greater than 200 ° C. (just as the support 8 described with reference to the figures 4 and 6 ).
  • the diameter d2 of the tip 7 is less than half the diameter d1 of the bar 3.
  • the foot 17 also has a diameter d3 which is less than a quarter of the diameter d1 of the bar.
  • the foot 17 has no ballistic effect on the target.
  • the tip 7 creates a pre-hole whose diameter is substantially equal to d2, therefore less than half the diameter d1 of the bar 3.
  • the front face 9 of the bar 3 impacts the target without being disturbed either by the foot 17 or the tube 19. This results in a hole in the target which is devoid of shrinkage. Again, the projectile is therefore insensitive to impacts under impact.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Description

Le domaine technique de l'invention est celui des projectiles sous-calibrés et en particulier des projectiles sous-calibrés de type obus flèches de gros calibre (calibre supérieur à 75 mm).The technical field of the invention is that of sub-calibrated projectiles and in particular sub-calibrated projectiles of the shell type of large caliber shells (caliber greater than 75 mm).

Les projectiles sous-calibrés (ou projectiles flèches) sont bien connus. Ils sont constitués d'un barreau en matériau perforant, doté d'une partie avant conique, et portant un empennage de stabilisation.Subcalibrated projectiles (or arrow projectiles) are well known. They consist of a bar made of perforating material, with a tapered front part, and carrying a stabilizing stabilizer.

Le barreau a un calibre bien inférieur à celui de l'arme qui tire le projectile (barreau de diamètre 25 à 30 mm pour un calibre d'arme de 120 mm).The bar has a caliber much lower than that of the weapon which fires the projectile (bar diameter of 25 to 30 mm for a caliber of weapon of 120 mm).

Le tir est rendu possible grâce à un sabot au calibre de l'arme qui libère le barreau à la sortie du tube de l'arme.The shot is made possible thanks to a hoof with the caliber of the weapon which releases the bar at the exit of the tube of the weapon.

Cette configuration classique permet d'obtenir une vitesse de barreau particulièrement importante (de l'ordre de 1700 m/s pour un barreau flèche tiré par une arme de 120mm de calibre). Les brevets US4724769 et FR2842897 décrivent à titre d'exemple des projectiles flèches connus.This conventional configuration makes it possible to obtain a particularly high bar speed (of the order of 1700 m / s for an arrow bar pulled by a 120 mm caliber weapon). Licences US4724769 and FR2842897 describe by way of example known arrow projectiles.

La vitesse importante qui leur est communiquée donne aux barreaux une très grande capacité de perforation des blindages.The high speed which is communicated to them gives the bars a very great capacity of perforation of the armor.

Un des principaux problèmes rencontrés par les projectiles sous calibrés est celui de la diminution de perforation liée à un impact sur la cible avec une incidence (impact suivant un angle du projectile avec la cible différent de 90°).One of the main problems encountered by the sub-calibrated projectiles is that of the perforation decrease related to an impact on the target with an impact (impact at an angle of the projectile with the target different from 90 °).

Les projectiles connus comportent en effet le plus souvent une structure de tête comportant un ou plusieurs noyaux perforants de diamètre inférieur à celui du barreau lui-même. Les brevets US4724769 et FR2578045 montrent une telle structure de tête classique.Known projectiles have in fact most often a head structure comprising one or more perforating cores of diameter less than that of the bar himself. Licences US4724769 and FR2578045 show such a conventional head structure.

Cependant, ces noyaux situés au niveau de la tête ont pour effet de provoquer lors de leur impact sur une cible homogène un cratère de diamètre élargi qui comporte un rétreint de diamètre réduit à son entrée.However, these cores situated at the level of the head have the effect of provoking, upon their impact on a homogeneous target, a crater of enlarged diameter which has a narrowing of reduced diameter at its entrance.

Le diamètre du rétreint est sensiblement égal au diamètre du barreau alors que le diamètre du cratère peut être le double de celui du barreau.The diameter of the necking is substantially equal to the diameter of the bar while the diameter of the crater can be twice that of the bar.

Un impact oblique va donc provoquer une interférence entre le barreau et le bord du rétreint qui conduit à une perturbation du barreau diminuant ses performances de perforation.An oblique impact will therefore cause interference between the bar and the edge of the necking which leads to a disturbance of the bar decreasing perforation performance.

On connaît par ailleurs par le brevet EP1521052 une bombe ou tête militaire de missile comportant un corps de pénétration d'un diamètre important (supérieur à 100 mm) et renfermant un chargement explosif. Ce corps de pénétration porte à sa partie avant des inserts en matériau dense (alliage de tungstène par exemple) qui facilite l'accrochage sur une cible. Un tel corps est très différent d'un projectile sous calibré de type flèche comme proposé par l'invention. Il ne comporte pas de sabot permettant son tir par un tube d'arme et sa vitesse d'impact sur une cible est de l'ordre de 500 mètres par seconde. Les phénomènes de rétreint de la cible lors d'un impact ne se rencontrent pas pour ces vitesses réduites.It is also known from the patent EP1521052 a bomb or missile warhead having a penetration body of large diameter (greater than 100 mm) and containing an explosive charge. This penetration body has at its front part inserts dense material (tungsten alloy for example) which facilitates the attachment to a target. Such a body is very different from a sub-calibrated arrow type projectile as proposed by the invention. It does not have a shoe allowing it to be fired by a weapon tube and its speed of impact on a target is of the order of 500 meters per second. Shrinkage phenomena of the target during an impact are not encountered for these reduced speeds.

Les projectiles flèches sous calibrés qui sont visés par l'invention, sont tirés par un tube d'arme par effet canon et ont une vitesse d'impact sur une cible de l'ordre de 1700 mètres par seconde.The sub-calibrated arrow projectiles that are the subject of the invention are fired by a gun barrel and have an impact speed on a target of the order of 1700 meters per second.

L'invention a pour but de proposer un projectile sous calibré de type flèche ayant une structure de tête aménagée qui lui donne une capacité de perforation qui est peu réduite par les impacts obliques.The object of the invention is to propose a sub-calibrated arrow-type projectile having an arranged head structure which gives it a capacity of perforation which is little reduced by oblique impacts.

Ainsi l'invention a pour objet un projectile sous calibré de type flèche comportant un barreau perforant prolongé par une partie conique, et entouré par un sabot réalisé en matériau léger et permettant le tir du projectile dans une arme, projectile caractérisé en ce que la partie conique comporte une pointe en matériau résistant à l'échauffement ayant un diamètre inférieur à la moitié du diamètre du barreau, la pointe étant reliée au barreau par une structure de support sans effet balistique, le barreau comportant une face avant plane sensiblement au diamètre du barreau.Thus, the subject of the invention is a sub-calibrated arrow-type projectile comprising a perforating rod extended by a conical part, and surrounded by a sabot made of light material and allowing the projectile to be fired into a weapon, a projectile characterized in that the part conical comprises a tip of heat-resistant material having a diameter less than half the diameter of the bar, the tip being connected to the bar by a support structure without ballistic effect, the bar having a front face substantially flat to the diameter of the bar .

Selon un mode particulier de réalisation, la structure de support comprend un bloc en matière plastique ou en céramique.According to a particular embodiment, the support structure comprises a block made of plastic or ceramic.

Selon un autre mode de réalisation, la structure de support comprend un manchon tubulaire conique en aluminium.According to another embodiment, the support structure comprises a conical tubular sleeve of aluminum.

Selon un autre mode de réalisation, la structure de support pourra comprendre un pied reliant la pointe à une partie médiane de la face avant du barreau, le pied ayant un diamètre inférieur au quart du diamètre du barreau.According to another embodiment, the support structure may comprise a foot connecting the tip to a median portion of the front face of the bar, the foot having a diameter less than a quarter of the diameter of the bar.

Le pied pourra être entouré par un tube en matière plastique ou céramique.The foot may be surrounded by a tube of plastic or ceramic.

L'invention sera mieux comprise à la lecture de la description qui va suivre de différents modes de réalisation, description faite en référence aux dessins annexés et dans lesquels :

  • la figure 1 montre l'architecture générale d'un projectile sous calibré de type flèche,
  • la figure 2 montre une structure de tête d'un projectile selon l'art antérieur,
  • la figure 3 montre l'impact sur une cible d'une telle structure de tête selon l'art antérieur,
  • la figure 4 montre une structure de tête d'un projectile selon un premier mode de réalisation de l'invention,
  • la figure 5 montre l'impact sur une cible d'une structure de tête selon l'invention,
  • la figure 6 montre une structure de tête d'un projectile selon un second mode de réalisation de l'invention,
  • la figure 7 montre une structure de tête d'un projectile selon un troisième mode de réalisation de l'invention,
  • la figure 8 montre une structure de tête d'un projectile selon un quatrième mode de réalisation de l'invention.
The invention will be better understood on reading the following description of various embodiments, a description given with reference to the appended drawings and in which:
  • the figure 1 shows the general architecture of a projectile under calibrated arrow type,
  • the figure 2 shows a head structure of a projectile according to the prior art,
  • the figure 3 shows the impact on a target of such a head structure according to the prior art,
  • the figure 4 shows a head structure of a projectile according to a first embodiment of the invention,
  • the figure 5 shows the impact on a target of a head structure according to the invention,
  • the figure 6 shows a head structure of a projectile according to a second embodiment of the invention,
  • the figure 7 shows a head structure of a projectile according to a third embodiment of the invention,
  • the figure 8 shows a head structure of a projectile according to a fourth embodiment of the invention.

La figure 1 montre un projectile flèche 1 qui comporte d'une façon classique un sabot 2 réalisé en matériau léger (tel qu'un alliage d'aluminium), sabot formé de plusieurs segments et qui entoure un barreau 3 sous-calibré.The figure 1 shows a projectile arrow 1 which comprises in a conventional manner a shoe 2 made of light material (such as an aluminum alloy), shoe formed of several segments and which surrounds a bar 3 sub-calibrated.

Le barreau est en acier ou bien en un alliage dense à base de tungstène.The bar is made of steel or a dense alloy based on tungsten.

Le barreau comporte une partie avant 3a conique et porte à sa partie arrière 3b un empennage 4 assurant sa stabilisation sur trajectoire.The bar comprises a conical front part 3a and carries at its rear part 3b a stabilizer 4 ensuring its stabilization on trajectory.

Le sabot porte une ceinture 5, réalisée en matière plastique, et qui assure l'étanchéité aux gaz propulsifs lors du tir dans le tube d'une arme (non représenté).The shoe wears a belt 5, made of plastic material, which seals the propellant gases when firing into the barrel of a weapon (not shown).

Lors du tir, les gaz du chargement propulsif (non représenté) exercent leur poussée au niveau d'une partie arrière 6 du sabot qui est au calibre et qui constitue ce qu'on appelle la plaque de poussée.During firing, the propellant charge gases (not shown) exert their thrust at a rear portion 6 of the shoe which is the caliber and which constitutes what is called the thrust plate.

Une telle configuration générale d'un projectile sous calibré stabilisé par empennage (projectile flèche) est bien connue. On pourra notamment considérer les brevets FR2521717 et FR2661739 qui décrivent des projectiles flèches connus.Such a general configuration of a stabilized stabilized projectile projectile (arrow projectile) is well known. In particular, patents may be considered FR2521717 and FR2661739 which describe known missile projectiles.

Le sabot 2 est destiné à permettre le tir du projectile dans l'arme. Il est constitué de plusieurs segments (le plus souvent trois) qui entourent le barreau 3 et qui sont en contact deux à deux au niveau de plans de joints.The shoe 2 is intended to allow the shot of the projectile in the weapon. It consists of several segments (usually three) which surround the bar 3 and which are in contact two by two at joint planes.

A la sortie du tube de l'arme les segments du sabot 2 s'écartent du barreau 3 sous l'action de la pression aérodynamique qui s'exerce au niveau de la partie avant (AV) du sabot 2.At the exit of the barrel of the weapon the segments of the shoe 2 deviate from the bar 3 under the action of the aerodynamic pressure exerted on the front portion (AV) of the shoe 2.

L'écartement des segments conduit à la rupture de la ceinture 5 et le sabot libère donc le barreau 3 qui poursuit sa trajectoire.The spacing of the segments leads to the rupture of the belt 5 and the shoe therefore releases the bar 3 which continues its trajectory.

Des moyens à concordance de forme (non représentés), par exemple un filetage, sont interposés entre le sabot 2 et le barreau 3 pour assurer l'entraînement de ce dernier.Means form concordance (not shown), for example a thread, are interposed between the shoe 2 and the bar 3 to ensure the drive thereof.

La figure 2 montre de façon plus précise un exemple de réalisation d'une partie avant 3a conique du barreau 3 pour un projectile selon l'art antérieur.The figure 2 shows more precisely an exemplary embodiment of a front portion 3a conical bar 3 for a projectile according to the prior art.

Cette partie avant est formée par une coiffe conique C qui est réalisée par exemple en acier pour pouvoir résister à l'échauffement sur trajectoire. La coiffe comporte un prolongement cylindrique C1 qui se positionne sur un rétreint R pratiqué à l'extrémité avant du barreau 3.This front part is formed by a conical cap C which is made for example of steel to be able to withstand the heating on trajectory. The cap has a cylindrical extension C1 which is positioned on a constriction R made at the front end of the bar 3.

On remarque que le barreau 3 est prolongé par plusieurs portions cylindriques E1, E2, E3 dont le diamètre est progressivement décroissant du barreau 3 vers l'avant de la coiffe C. Cette structure classique est adoptée pour faciliter une fragmentation progressive de la structure de tête à l'impact sur une cible. Ceci est décrit en particulier par le brevet FR2578045 .Note that the bar 3 is extended by several cylindrical portions E1, E2, E3 whose diameter is progressively decreasing from the bar 3 towards the front of the cap C. This conventional structure is adopted to facilitate a progressive fragmentation of the structure of head to the impact on a target. This is described in particular by the patent FR2578045 .

La figure 3 montre l'effet de l'impact d'un tel projectile sur une cible 20. L'ogive C est détruite lors de l'impact et l'empilement E1, E2, E3 crée un avant trou de diamètre DR qui est légèrement supérieur au diamètre d1 du barreau 3. La tête du barreau s'expanse à l'intérieur de la cible et crée un trou dont le diamètre D est sensiblement égal au double de celui du barreau d1 (D ≈ 2d1). Il y a donc avec le projectile selon l'art antérieur un rétreint DR à l'entrée du trou dans la cible, rétreint qui provoque des perturbations lorsque la cible est impactée sous incidence (angle entre la direction du barreau et le plan de la cible différent de zéro).The figure 3 shows the effect of the impact of such a projectile on a target 20. The warhead C is destroyed during the impact and the stack E1, E2, E3 creates a front hole of diameter D R which is slightly greater at the diameter d1 of the bar 3. The head of the bar expands inside the target and creates a hole whose diameter D is substantially equal to twice that of the bar d1 (D ≈ 2d1). There is therefore with the projectile according to the prior art a narrowing D R at the entrance of the hole in the target, shrinkage which causes disturbances when the target is impacted at incidence (angle between the direction of the bar and the plane of the target other than zero).

La figure 4 montre un premier mode de réalisation de l'invention.The figure 4 shows a first embodiment of the invention.

Suivant ce mode de réalisation la partie conique 3a comporte une pointe 7 qui est réalisée en un matériau résistant à l'échauffement sur trajectoire du projectile, par exemple en acier ou bien en un matériau identique à celui du barreau 3, tel un alliage de tungstène. On pourra réaliser la pointe 7 également en un métal ou une céramique ayant une température de fusion supérieure à 1700 K.According to this embodiment, the conical portion 3a has a tip 7 which is made of a heat-resistant material on the trajectory of the projectile, for example steel or a material identical to that of the bar 3, such as a tungsten alloy . The tip 7 may also be made of a metal or a ceramic having a melting point greater than 1700 K.

Cette pointe 7 a un diamètre maximal d2 qui est inférieur à la moitié du diamètre d1 du barreau. Elle s'étend sur une longueur l qui est comprise entre 20% et 50% de la longueur totale L de la partie conique 3a.This point 7 has a maximum diameter d2 which is less than half the diameter d1 of the bar. It extends over a length l which is between 20% and 50% of the total length L of the conical portion 3a.

La pointe 7 est reliée au barreau 3 par une structure légère qui est ici formée par un bloc 8 en matière plastique.The tip 7 is connected to the bar 3 by a light structure which is here formed by a block 8 of plastic.

Le bloc 8 est fixé (ici par collage) au niveau d'une face avant plane 9 du barreau 3. La pointe 7 est fixée au bloc 8, ici par sertissage. A cet effet la pointe 7 porte un téton cylindrique 10 qui se loge dans un trou correspondant du bloc 8.The block 8 is fixed (here by gluing) at a flat front face 9 of the bar 3. The tip 7 is fixed to the block 8, here by crimping. For this purpose the tip 7 door a cylindrical stud 10 which is housed in a corresponding hole of the block 8.

La pointe 7 a pour fonction d'assurer la résistance à l'échauffement de la partie conique 3a lors de la trajectoire balistique du barreau 3. Son efficacité perforante n'a pas d'importance. La résistance aux contraintes thermiques liées au vol, conduit cependant à choisir, pour réaliser la pointe 7, un matériau à haut point de fusion (température de fusion supérieure à 1700 K), par exemple de l'acier ou bien un alliage de tungstène, ou une céramique.The tip 7 serves to ensure the heating resistance of the conical portion 3a during the ballistic trajectory of the bar 3. Its perforating efficiency is not important. The resistance to thermal stresses related to the flight, however, leads to choose, to achieve the tip 7, a high melting point material (melting temperature greater than 1700 K), for example steel or a tungsten alloy, or a ceramic.

La figure 5 montre ce projectile à l'impact sur une cible 20. Du fait du diamètre de la pointe 7 qui est inférieur à la moitié du diamètre d1 du barreau, l'élargissement du trou provoqué de façon progressive par la pointe ne dépasse pas la moitié de d1. Le barreau va alors pouvoir impacter la cible 20 par sa face avant plane 9.The figure 5 shows this projectile at impact on a target 20. Due to the diameter of the tip 7 which is less than half the diameter d1 of the bar, the widening of the hole caused gradually by the tip does not exceed half of d1. The bar will then be able to impact the target 20 by its flat front face 9.

Lors de l'impact sur la cible la pointe 7 génère donc un pré-cratère de diamètre sensiblement égal à celui de la pointe (d2) et le bloc 8 est détruit. Seul le barreau 3 a un effet perforant sur la cible. Sa face avant plane 9 et son diamètre d1 conduisent à la réalisation d'une cavité dont le diamètre sera sensiblement le double de celui (d1) du barreau.During the impact on the target the tip 7 thus generates a pre-crater of diameter substantially equal to that of the tip (d2) and the block 8 is destroyed. Only the bar 3 has a perforating effect on the target. Its flat front face 9 and its diameter d1 lead to the realization of a cavity whose diameter will be substantially twice that (d1) of the bar.

Du point de vue des performances balistiques le bloc 8 est inexistant et le projectile se comporte comme s'il était constitué de deux parties distinctes impactant consécutivement la cible : la pointe 7 et le barreau 3. Dire que le bloc n'a pas d'effet balistique signifie qu'il ne participe pas à la perforation.From the point of view of the ballistic performances, the block 8 is non-existent and the projectile behaves as if it consisted of two distinct parts impacting consecutively the target: the point 7 and the bar 3. To say that the block does not have Ballistic effect means that it does not participate in the perforation.

Ce fonctionnement reste le même tant que la pointe 7 a un diamètre inférieur à la moitié du diamètre d1 du barreau.This operation remains the same as the tip 7 has a diameter less than half the diameter d1 of the bar.

Si la pointe a un diamètre compris entre 0, 5d1 et d1, on a pu observer et simuler que le cratère généré par l'impact du barreau 3 lui-même a un diamètre compris entre d1 et 2d1, donc présente un rétreint DR d'entrée qui est préjudiciable à la perforation si le projectile a une incidence par rapport à la cible.If the tip has a diameter between 0, 5d1 and d1, it has been observed and simulate that the crater generated by the impact of the bar 3 itself has a diameter between d1 and 2d1, so has a narrowing D R d which is detrimental to the perforation if the projectile has an impact with respect to the target.

Contrairement à l'enseignement des documents antérieurs, il n'est donc pas nécessaire pour concevoir un projectile flèche de prévoir une structure de tête conique ayant une capacité perforante. Il n'est pas non plus nécessaire de réaliser une structure de tête complexe comportant plusieurs noyaux perforants de diamètres progressivement croissants.Contrary to the teaching of the previous documents, it is therefore not necessary to design an arrow projectile to provide a conical head structure having a perforating capacity. Nor is it necessary to produce a complex head structure comprising a plurality of perforating cores of progressively increasing diameters.

La structure de tête du projectile selon l'invention comporte uniquement, à l'extrémité de la partie conique avant 3a, un élément (pointe 7) assurant la résistance au choc thermique se produisant pendant le vol.The head structure of the projectile according to the invention comprises only, at the end of the front conical portion 3a, an element (tip 7) providing the thermal shock resistance occurring during flight.

Cet élément résistant doit être le plus petit possible et il ne doit pas gêner l'impact de la face avant plane 9 du barreau 3 lui-même sur la cible. C'est pourquoi la structure reliant cette pointe résistante 7 au barreau 3 doit également être la plus légère possible.This resistant element must be as small as possible and it must not hinder the impact of the flat front face 9 of the bar 3 itself on the target. This is why the structure connecting this resistant tip 7 to the bar 3 must also be as light as possible.

Les performances de perforation sont assurées par le barreau 3 seul dont la face avant 9 plane est au diamètre d1 du barreau. La partie conique 3a en avant du barreau ne participe pas à la perforation et doit être éliminée dès l'impact pour ne pas perturber l'action du barreau.The perforation performance is provided by the bar 3 alone whose front face 9 plane is at diameter d1 of the bar. The conical part 3a in front of the bar does not participate in the perforation and must be eliminated on impact so as not to disturb the action of the bar.

On choisira donc, pour réaliser la structure de support 8, un matériau sans capacités de perforation particulières, par exemple une matière plastique, telle que du polytétrafluoréthylène ou un autre polymère.Therefore, to make the support structure 8, a material without particular perforation capabilities will be chosen, for example a plastic material, such as polytetrafluoroethylene or another polymer.

On pourra aussi réaliser la structure de support 8 en une céramique, telle que du nitrure d'aluminium qui a une très bonne résistance thermique et qui est facilement usinable. L'échauffement du support 8 est moindre que celui subi par la pointe 7 elle-même. Il suffira de choisir, pour le support 8, un matériau ayant un point de fusion supérieur à 200°C.The support structure 8 may also be made of a ceramic, such as aluminum nitride which has a very good thermal resistance and which is easily machinable. The heating of the support 8 is less than that suffered by the tip 7 itself. It will suffice to choose, for the support 8, a material having a melting point greater than 200 ° C.

La figure 6 montre un autre mode de réalisation de l'invention qui ne diffère de celui de la figure 4 que par la présence d'une tige cylindrique 11 à la face arrière du bloc 8. Cette tige 11 se positionne dans un alésage 12 réalisé au niveau de la face avant 9 du barreau 3.The figure 6 shows another embodiment of the invention which differs from that of the figure 4 that by the presence of a cylindrical rod 11 to the rear face of the block 8. This rod 11 is positioned in a bore 12 formed at the front face 9 of the bar 3.

Une telle disposition facilite le montage du bloc 8 sur le barreau. La fixation du bloc 8 au barreau 3 sera cependant assurée par collage.Such an arrangement facilitates the mounting of the block 8 on the bar. The fixing of the block 8 to the bar 3, however, will be ensured by gluing.

La figure 7 montre un autre mode de réalisation de l'invention dans lequel la structure de support est formée par un manchon 13 tronconique réalisé en aluminium. Le manchon 13 est creux et délimite un espace vide 14.The figure 7 shows another embodiment of the invention in which the support structure is formed by a frustoconical sleeve 13 made of aluminum. The sleeve 13 is hollow and delimits an empty space 14.

Le manchon 13 a une épaisseur réduite (de l'ordre du millimètre). Une de ses fonctions est d'assurer le profil aérodynamique du projectile pour sa trajectoire balistique. Il assure aussi le soutien de la pointe 7 qui, comme dans les modes de réalisation précédents, est réalisée en un matériau résistant thermiquement, par exemple en acier ou bien en un matériau identique à celui du barreau 3, tel un alliage de tungstène. La pointe 7 assure la résistance au choc thermique se produisant pendant le vol.The sleeve 13 has a reduced thickness (of the order of one millimeter). One of its functions is to ensure the aerodynamic profile of the projectile for its ballistic trajectory. It also supports the tip 7 which, as in the previous embodiments, is made of a thermally resistant material, for example steel or a material identical to that of the bar 3, such as a tungsten alloy. The tip 7 provides the thermal shock resistance occurring during the flight.

La pointe 7 a toujours un diamètre maximal d2 qui est inférieur à la moitié du diamètre d1 du barreau 3 et s'étend sur une longueur l qui est comprise entre 20% et 50% de la longueur totale L de la partie conique 3a.The tip 7 always has a maximum diameter d2 which is less than half the diameter d1 of the bar 3 and extends over a length l which is between 20% and 50% of the total length L of the conical portion 3a.

Le manchon 13 reçoit à sa partie avant le téton 10 de la pointe 7 qui pourra porter un filetage.The sleeve 13 receives at its front portion the pin 10 of the tip 7 which can carry a thread.

Le manchon 13 comprend un prolongement cylindrique 16 qui se positionne sur un rétreint 15 pratiqué à l'extrémité avant du barreau 3.The sleeve 13 comprises a cylindrical extension 16 which is positioned on a narrowing 15 made at the front end of the bar 3.

Compte tenu de la faible épaisseur du manchon 13, la réduction de diamètre du barreau 3 au niveau du rétreint 15 a une influence négligeable sur les performances de perforation. Le manchon n'a donc aucun effet balistique sur la cible (il ne participe pas à la perforation).Given the small thickness of the sleeve 13, the diameter reduction of the bar 3 at the necking 15 has a negligible influence on the perforation performance. The sleeve therefore has no ballistic effect on the target (it does not participate in the perforation).

A l'impact sur une cible, la pointe 7 et le manchon 13 sont éjectés ou détruits. C'est le barreau 3 avec sa face avant plane 9 qui impacte la cible et crée dans celle-ci une perforation de diamètre sensiblement égal au double de d1. Ce trou de grand diamètre est obtenu même avec des impacts sous forte incidence. Les performances de perforation ne sont donc pas réduites par les impacts sous incidence.At impact on a target, the tip 7 and the sleeve 13 are ejected or destroyed. It is the bar 3 with its flat front face 9 which impacts the target and creates in it a perforation of diameter substantially equal to twice that of d1. This large diameter hole is obtained even with high incidence impacts. Perforation performance is therefore not reduced by impact impact.

La figure 8 montre un autre mode de réalisation de l'invention dans lequel la structure de support de la pointe 7 comprend un pied 17 reliant la pointe 7 à une partie médiane M de la face avant 9 du barreau. Le pied 17 pourra (comme représenté ici) être réalisé d'une seule pièce avec la pointe 7. Il est fixé au barreau 3 par une extrémité filetée 18 engagée dans un taraudage porté par la face avant 9 du barreau 3.The figure 8 shows another embodiment of the invention in which the support structure of the tip 7 comprises a foot 17 connecting the tip 7 to a middle portion M of the front face 9 of the bar. The foot 17 can (as shown here) be made in one piece with the tip 7. It is fixed to the bar 3 by a threaded end 18 engaged in a tapping carried by the front face 9 of the bar 3.

Le pied 17 est entouré par un tube 19 réalisé en matière plastique ou en céramique. Ce tube a un profil externe conique et a pour seule fonction de compléter l'ogive balistique du barreau. Il ne participe pas à la perforation et n'a donc aucun effet balistique. Il est détruit par l'impact sur la cible. Le matériau du tube 19 pourra être choisi parmi les matériaux ayant une température de fusion supérieure à 200 °C (tout comme le support 8 décrit en référence aux figures 4 et 6).The foot 17 is surrounded by a tube 19 made of plastic or ceramic. This tube has an external conical profile and has the sole function of completing the ballistic ogive of the bar. It does not participate in the perforation and therefore has no ballistic effect. It is destroyed by the impact on the target. The material of the tube 19 may be chosen from materials having a melting point greater than 200 ° C. (just as the support 8 described with reference to the figures 4 and 6 ).

Comme dans les modes de réalisation précédents le diamètre d2 de la pointe 7 est inférieur à la moitié du diamètre d1 du barreau 3.As in the previous embodiments the diameter d2 of the tip 7 is less than half the diameter d1 of the bar 3.

Selon une caractéristique essentielle de ce mode de réalisation, le pied 17 a par ailleurs un diamètre d3 qui est inférieur au quart du diamètre d1 du barreau.According to an essential characteristic of this embodiment, the foot 17 also has a diameter d3 which is less than a quarter of the diameter d1 of the bar.

Avec une telle disposition, le pied 17 n'a aucun effet balistique sur la cible.With such an arrangement, the foot 17 has no ballistic effect on the target.

A l'impact sur la cible, la pointe 7 crée un avant trou dont le diamètre est sensiblement égal à d2, donc inférieur à la moitié du diamètre d1 du barreau 3.At impact on the target, the tip 7 creates a pre-hole whose diameter is substantially equal to d2, therefore less than half the diameter d1 of the bar 3.

La face avant 9 du barreau 3 impacte la cible sans être perturbée ni par le pied 17 ni par le tube 19. Il en résulte un trou dans la cible qui est dépourvu de rétreint. Là encore, le projectile est donc peu sensible aux impacts sous incidence.The front face 9 of the bar 3 impacts the target without being disturbed either by the foot 17 or the tube 19. This results in a hole in the target which is devoid of shrinkage. Again, the projectile is therefore insensitive to impacts under impact.

Claims (5)

  1. An arrow-type sub-calibre projectile incorporating a piercing bar (3) extended by a conical portion (3a), and surrounded by a sabot (2) made of a lightweight material and allowing to fire the projectile in a weapon, projectile characterized in that the conical portion (3a) comprises a tip (7) of a heating-resistant material having a diameter less than half the diameter of the bar (3), the tip (7) being connected to the bar (3) by a support structure (8, 13, 17) having no ballistic effects, the bar comprising a flat front face (9) substantially to the diameter of the bar (3).
  2. The sub-calibre projectile according to claim 1, characterized in that the support structure comprises a block (8) made of a plastic or ceramic material.
  3. The sub-calibre projectile according to claim 1, characterized in that the support structure comprises an aluminum conical tubular sleeve (13).
  4. The sub-calibre projectile according to claim 1, characterized in that the support structure comprises a foot (17) connecting the tip (7) to a middle portion of the front face (9) of the bar (3), the foot (17) having a diameter less than a quarter of the diameter of the bar (3).
  5. The sub-calibre projectile according to claim 4, characterized in that the foot (17) is surrounded by a tube (19) of a plastic or ceramic material.
EP13157701.7A 2012-03-06 2013-03-04 Subcalibre projectile with improved head Active EP2636985B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13157701T PL2636985T3 (en) 2012-03-06 2013-03-04 Subcalibre projectile with improved head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1200677A FR2987891B1 (en) 2012-03-06 2012-03-06 PROJECTILE UNDER CALIBER HAVING A DRAINED HEAD STRUCTURE

Publications (2)

Publication Number Publication Date
EP2636985A1 EP2636985A1 (en) 2013-09-11
EP2636985B1 true EP2636985B1 (en) 2014-10-15

Family

ID=47749742

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13157701.7A Active EP2636985B1 (en) 2012-03-06 2013-03-04 Subcalibre projectile with improved head

Country Status (6)

Country Link
US (1) US8869704B2 (en)
EP (1) EP2636985B1 (en)
ES (1) ES2524128T3 (en)
FR (1) FR2987891B1 (en)
IL (1) IL225056A (en)
PL (1) PL2636985T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9212876B1 (en) * 2013-08-30 2015-12-15 The United States Of America As Represented By The Secretary Of The Army Large caliber frangible projectile
DE102015117018A1 (en) * 2015-10-06 2017-04-06 Rheinmetall Waffe Munition Gmbh Penetrator and subcaliber projectile
US11073368B2 (en) * 2017-10-16 2021-07-27 Carl Edward Forsell Ceramic bullet tip to assist bullets in shattering glass
WO2020193935A1 (en) * 2019-03-25 2020-10-01 Bae Systems Plc Enhanced performance ammunition
EP3715774A1 (en) * 2019-03-25 2020-09-30 BAE SYSTEMS plc Enhanced performance ammunition
DE102019113325A1 (en) * 2019-05-20 2020-11-26 Rheinmetall Waffe Munition Gmbh Penetrator, use of a penetrator and bullet

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1102758A (en) * 1914-03-16 1914-07-07 Washington Steel & Ordnance Company Armor-piercing projectile.
US2401380A (en) * 1941-12-15 1946-06-04 Alfred F Teitscheid Projectile cap
US3033116A (en) * 1958-05-20 1962-05-08 John L Critcher Ammunition
FR2339833A1 (en) * 1976-01-30 1977-08-26 Thomson Brandt PERFORATING PROJECTILE BODY AND AMMUNITION EQUIPPED WITH SUCH BODY
DE2743732A1 (en) * 1977-09-29 1986-07-10 Rheinmetall GmbH, 4000 Düsseldorf BULLET STOCK
FR2606868B1 (en) * 1980-09-23 1989-06-23 France Etat Armement PERFORATING PROJECTILE WITH FRAGILIZED PERFORATING HEAD
DE3037560A1 (en) * 1980-10-04 1984-11-29 Rheinmetall GmbH, 4000 Düsseldorf ARMORING BULLET
FR2521717B1 (en) 1982-02-16 1986-11-21 France Etat CINETIC ENERGY PROJECTILE AND LAUNCHING METHOD THEREOF
DE3209594A1 (en) * 1982-03-17 1983-09-29 L'Etat Français représenté par le Délégué Général pour l'Armement, 75997 Paris TARGET-BREAKING RIFLE SHEET, IN PARTICULAR TO FIGHT MULTIPLE-PLATE TARGETS
DE3314752A1 (en) * 1983-04-23 1984-10-31 Rheinmetall GmbH, 4000 Düsseldorf LACE BODY FOR A BALANCE SHEET
GB8417898D0 (en) * 1983-10-27 1998-09-09 Rheinmetall Gmbh Projectile
DE3476117D1 (en) * 1983-11-23 1989-02-16 Voest Alpine Ag Sub-calibre penetrator and method of making the same
EP0225046B1 (en) * 1985-10-31 1990-07-18 British Aerospace Public Limited Company Kinetic energy missile
DE3736167A1 (en) * 1987-10-26 1989-05-03 Bongers Hermann Arrow projectile having a conical discarding sabot, the conical discarding sabot separation being actuated by centrifugal force
US5728968A (en) * 1989-08-24 1998-03-17 Primex Technologies, Inc. Armor penetrating projectile
FR2661739A1 (en) 1990-05-04 1991-11-08 Giat Ind Sa DEVICE FOR SEALING A BOOM PROJECTILE.
DE4022462A1 (en) * 1990-07-14 1992-01-16 Diehl Gmbh & Co Solid air-launched underwater projectile - has core with shortened front protected by ballistic cap
DE4023482A1 (en) * 1990-07-24 1992-01-30 Rheinmetall Gmbh Sub-calibre projectile with increased penetration capability - provided by penetrator cores of increasing size
US5103735A (en) * 1991-06-20 1992-04-14 The United States Of America As Represented By The Secretary Of The Army Splined sabot
US5223667A (en) * 1992-01-21 1993-06-29 Bei Electronics, Inc. Plural piece flechettes affording enhanced penetration
US6662726B1 (en) * 1999-03-08 2003-12-16 General Dynamics Ordnance And Tactical Systems, Inc. Kinetic energy penetrator
FR2842897B1 (en) 2002-07-24 2004-09-03 Giat Ind Sa MULTI-PUSH CALIBER PROJECTILE
US20040231552A1 (en) * 2003-05-23 2004-11-25 Mayersak Joseph R. Kinetic energy cavity penetrator weapon
FR2860579B1 (en) * 2003-10-03 2007-10-05 Giat Ind Sa PERFORATING MUNITION
FR2958391B1 (en) * 2010-03-30 2012-07-27 Nexter Munitions PENETRATEUR WITH KINETIC ENERGY.

Also Published As

Publication number Publication date
IL225056A0 (en) 2013-06-27
IL225056A (en) 2016-03-31
US20130340646A1 (en) 2013-12-26
EP2636985A1 (en) 2013-09-11
ES2524128T3 (en) 2014-12-04
FR2987891A1 (en) 2013-09-13
FR2987891B1 (en) 2014-09-26
US8869704B2 (en) 2014-10-28
PL2636985T3 (en) 2015-03-31

Similar Documents

Publication Publication Date Title
EP2636985B1 (en) Subcalibre projectile with improved head
CA2558031C (en) Hunting bullet comprising an expansion ring
EP1188032B1 (en) Bullet with an internally carried sub-projectile
EP0905473B1 (en) Large-calibre long range projectile for artillery
EP0723131B1 (en) Muzzle brake for middle or large-bore barrel
CH650073A5 (en) PROJECTILE FOR HANDLES AND SHOULDERS AND CARTRIDGE PROVIDED WITH SUCH A PROJECTILE.
EP1664663B1 (en) Hunting bullet with reduced aerodynamic resistance
EP0737298B1 (en) Telescoping arrow-type hunting bullet with a sub-projectile combined with a launching element
FR2599828A1 (en) AMMUNITION OF SMALL OR MEDIUM SIZE WITH IMPROVED EFFICIENCY AND LIMITED RANGE, ESPECIALLY FOR HUNTING
EP0728293B1 (en) Close range dual penetration bullet for hunting
EP1701131B1 (en) Armour perforating projectile
BE555279A (en)
EP2620737B1 (en) Non lethal munition
EP2088393A2 (en) Shell for the dispersion of projectiles
FR2759453A1 (en) SUB-CALIBER PROPULSION CAGE PROJECTILE
EP2930460B1 (en) Supersonic projectile for cannon with smooth barrel
CA2179066C (en) Telescoping arrow-type hunting bullet with a sub-projectile combined with a launching element
EP4008992A1 (en) Spin-stabilised projectile
FR3115358A1 (en) PERFORATING AND EXPLOSIVE PROJECTILE WITH A STABILIZATION TAILPLATE
EP1988355A1 (en) Projectile generating flashes of light
FR2978821A1 (en) High range artillery shell, has guide studs regularly and angularly spaced at front part of shaped body, and connected to body by connection unit that is breakable during shooting, and priming fuse completely covered by ballistic cap
EP1870640A2 (en) Warhead generating a tubular core
FR2912211A1 (en) Projectile e.g. sub-caliber arrow projectile, for use with barrel, has piston closing front part of envelope and comprising rear surface applied against expanded material, and external part carrying external surface of piston

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20140220

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

RIC1 Information provided on ipc code assigned before grant

Ipc: F42B 12/06 20060101AFI20140312BHEP

Ipc: F42B 12/08 20060101ALI20140312BHEP

INTG Intention to grant announced

Effective date: 20140404

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTC Intention to grant announced (deleted)
INTG Intention to grant announced

Effective date: 20140508

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 691880

Country of ref document: AT

Kind code of ref document: T

Effective date: 20141115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602013000345

Country of ref document: DE

Effective date: 20141127

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2524128

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20141204

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20141015

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 691880

Country of ref document: AT

Kind code of ref document: T

Effective date: 20141015

REG Reference to a national code

Ref country code: NO

Ref legal event code: T2

Effective date: 20141015

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

REG Reference to a national code

Ref country code: PL

Ref legal event code: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150215

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150216

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150116

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602013000345

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20150716

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150304

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150304

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160331

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160331

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20130304

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141015

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20230403

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240220

Year of fee payment: 12

Ref country code: GB

Payment date: 20240221

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20240226

Year of fee payment: 12

Ref country code: NO

Payment date: 20240222

Year of fee payment: 12

Ref country code: IT

Payment date: 20240220

Year of fee payment: 12

Ref country code: FR

Payment date: 20240220

Year of fee payment: 12

Ref country code: BE

Payment date: 20240220

Year of fee payment: 12