EP1521052B1 - Armour perforating projectile - Google Patents

Armour perforating projectile Download PDF

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Publication number
EP1521052B1
EP1521052B1 EP04292218A EP04292218A EP1521052B1 EP 1521052 B1 EP1521052 B1 EP 1521052B1 EP 04292218 A EP04292218 A EP 04292218A EP 04292218 A EP04292218 A EP 04292218A EP 1521052 B1 EP1521052 B1 EP 1521052B1
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EP
European Patent Office
Prior art keywords
bars
insert
perforating
penetration
ammunition according
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EP04292218A
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German (de)
French (fr)
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EP1521052A1 (en
Inventor
Nicolas Eches
Dominique Bouchaud
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Nexter Munitions SA
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Nexter Munitions SA
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Priority to EP06076213A priority Critical patent/EP1701131B1/en
Publication of EP1521052A1 publication Critical patent/EP1521052A1/en
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Publication of EP1521052B1 publication Critical patent/EP1521052B1/en
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    • 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

Definitions

  • the technical field of the invention is that of ammunition allowing the destruction of highly protected targets by a wall for example of concrete.
  • the body piercing this ammunition has a massive insert that is embedded in the body material.
  • This insert is made of a dense and mechanically resistant alloy chosen for example from refractory materials and their alloys (tungsten, tantalum, uranium).
  • the body material is formed of steel that is cast around the insert.
  • This ammunition has the disadvantage of being complex to manufacture. It is first of all delicate and expensive to produce a dense core of large diameter (greater than 90 mm) and having high mechanical characteristics in a reproducible manner (density greater than 13, yield strength greater than 1000 mega pascals). Indeed, these materials are used in the form of powders by compression techniques.
  • the patent WO-87/07708 discloses a piercing projectile comprising an envelope and a core of heavy material. This projectile is completed by a cap of light material (plastic or aluminum) empty or filled with incendiary material. No insert is provided in the cap and therefore no special provision is provided.
  • the patent FR-2771496 describes a conventional projectile comprising a heavy body of tungsten with an element before aluminum desiccator transmitting the projectile a solicitation of impact. No insert is provided in this element before and no precision is made relative to its density relative to the body.
  • the munition according to the invention is of simplified manufacture.
  • the munition according to the invention makes it possible to ensure the perforation of a concrete target regardless of the angle of impact on the target.
  • the subject of the invention is a perforating munition comprising a penetration body delimiting an internal cavity closed by a base, the penetration body comprising a front tip comprising at least one insert integral with the tip, said insert being disposed in a housing opening out of the body, characterized in that the inserts are shaped in segments arranged radially around an axial extension of the body, said segments being secured to the body by a connecting means, said body being made of a material having an elastic limit greater than or equal to 1200 Mega Pascals and said insert being made of a material with high mechanical characteristics, denser than that of the body.
  • the connecting means may comprise at least one ring surrounding the inserts.
  • This perforating munition may also include a dense alloy nose disposed at the end of the axial extension of the body and having a rear surface bearing on the segments.
  • each insert may be constituted by a substantially cylindrical bar housed in a bore of the penetration body.
  • the perforating munition may thus also include an axial insert having a front tip extending the penetration body.
  • This munition may then comprise a charge of propellant powder for ejecting the insert out of the penetration body.
  • the invention also relates to a perforating munition comprising a penetration body delimiting an internal cavity closed by a base, the penetration body comprising a front tip comprising inserts integral with the tip, said inserts being arranged in a housing opening to the outside of the body, characterized in that the inserts are shaped in at least one ring of bars regularly arranged around an axis of the penetration body, said bars being arranged radially around an axial extension of the body, said bars being secured to the body by a connecting means, said body being made of a material having a yield strength greater than or equal to 1200 Mega Pascals and said insert being made of a material with high mechanical characteristics, denser than that of the body.
  • the ammunition can thus comprise two crowns of bars regularly arranged around an axis of the penetration body.
  • the ends of the bars may instead be projecting outside the penetration body.
  • Each bar may have its axis inclined relative to the axis of the penetration body.
  • the ends of the bars of a crown and another ring and / or an axial bar may be substantially in the same plane.
  • the internal cavity may contain at least one explosive charge.
  • a perforating munition 1 according to one embodiment of the invention comprises a penetration body 2 which delimits an internal cavity 3 closed by a base 4.
  • This ammunition could be an air / ground bomb or a missile or a military missile head. It will have a diameter greater than 100 mm and a length of the order of 1.5 m.
  • it may include a rear portion (not shown) incorporating a thruster which will confer a range or a given speed.
  • the internal cavity 3 contains an explosive charge 5 which can be initiated by a fuse 6 disposed in the vicinity of the base 4.
  • the fuze will be designed to ensure the detection of the crossing of a wall and then to initiate the explosive charge once this wall crossed.
  • Such rockets are well known to those skilled in the art. For example, one can refer to the patent US5255608 which describes such a rocket.
  • the penetration body 2 comprises a front tip 2a which is extended by a rear cylindrical portion 2b delimiting the internal cavity 3.
  • This body is made of a material with high mechanical characteristics, that is to say a material whose elastic limit is greater than or equal to 1200 Mega Pascals.
  • a material with high mechanical characteristics that is to say a material whose elastic limit is greater than or equal to 1200 Mega Pascals.
  • 35NCD16 steel may be used.
  • the front tip 2a comprises inserts 7 made of a denser material than that of the body 2.
  • inserts 7 are made of a dense material with high mechanical characteristics.
  • a material with a density greater than or equal to 17 and having a yield strength greater than or equal to 1000 mega pascals will be chosen.
  • the inserts 7 are here shaped in segments arranged radially around an axial cylindrical axial extension 8 of the body 2.
  • each segment is in contact with the body 2, on the one hand at the axial extension 8 and on the other hand with a shoulder 9 of the body 2.
  • the free space surrounding the axial extension 8 thus constitutes a housing for the inserts.
  • Each insert 7 is also in contact with two other neighboring inserts.
  • the set of inserts thus forms the ogivated part of the front tip 2a of the penetration body 2.
  • the inserts 7 are made integral with the body by a connecting means which comprises at least one ring 10 surrounding the inserts 7. This ring will be made of steel. It will be housed in a groove 11 formed by the juxtaposition of notches carried by each insert.
  • the munition 1 also comprises a nose 12 which is also made of a dense alloy. This nose is fixed to an end 14 of smaller diameter carried by the axial extension 8 of the body 2.
  • the nose 12 has a rear surface 13 resting on the inserts 7.
  • the nose 12 is fixed on the end 14 for example by threading. It makes it possible to transmit to the various inserts 7 the shock during the impact on a target.
  • the munition according to the invention combines a large diameter warhead (greater than 90 mm) and a large perforating capacity with a steel body whose sole function is to ensure the carrying of the explosive charge and the maintenance of perforating inserts.
  • the inserts 7 have reasonable dimensions (section of the order of 2000 mm 2 to 6000 mm 2 ) which allows their manufacture according to the sintering techniques already used for the artillery arrows projectiles.
  • Figure 2 shows a piercing ammunition 1.
  • This piercing ammunition differs from the previous one only by the structure of the front tip 2a.
  • the front tip 2a here comprises an axial bore 15 inside which is positioned an insert 7 having the shape of a substantially cylindrical bar and made of a material denser than that of the body 2.
  • the front tip 16 of this insert has an ogive shape that extends the penetration body 2.
  • This insert 7 will thus have a diameter of the order of 30 to 40 mm for a penetration body 2 of diameter 90 mm. Its manufacture is thus facilitated.
  • the implementation of a tungsten alloy with high mechanical characteristics makes it possible to confer on this point a perforating character and not mere ballast. This improves the perforation capabilities of the ammunition for a given mass.
  • the ammunition shown in FIG. 3 also comprises a single insert 7 made of dense material disposed in an axial bore 15.
  • This insert 7 has an internal cavity 17 inside which is disposed a charge of propellant powder 18.
  • a device 19 for igniting this charge is housed in the body 2. It is connected by a wire connection 20 to the rocket 6.
  • the latter will then include a chronometric module or a proximity detection module (connected to an antenna not shown integral with the body's warhead 2) which will trigger the ignition of the propellant charge 18 before the impact on a target and at a distance from it of the order of 3 to 4 calibers.
  • a chronometric module or a proximity detection module connected to an antenna not shown integral with the body's warhead 2 which will trigger the ignition of the propellant charge 18 before the impact on a target and at a distance from it of the order of 3 to 4 calibers.
  • the propellant charge 18 will ensure the ejection of the insert 7 out of the penetration body 2. It will therefore be propelled towards the target.
  • the speed differential between insert 7 and the body 2 will be of the order of 200 m / s. Such an arrangement increases the perforation capabilities of the munition without increasing its speed.
  • the insert will ensure the drilling of a pre-hole in the target, the penetration body will then impact the target at this pre-hole.
  • Figures 4a, 4b and 4c show another embodiment of a perforating munition according to the invention.
  • This mode differs from the previous ones only in the structure of the piercing head 2a which here comprises several bars 7a, 7b, 7c set in bores arranged in the body of the tip 2a.
  • Each bar 7a, 7b, 7c is cylindrical and the axis of its bore is parallel to the axis 21 of the piercing head 2a.
  • the bars 7a and 7b are thus distributed in two concentric rings surrounding the axis 21 of the perforating head.
  • a bar 7c also occupies a coaxial bore to the head 2a (see also Figure 4c).
  • first ring or middle ring comprising eight bars 7b regularly distributed around the axis 21 and a second ring or outer ring comprising sixteen bars 7a regularly distributed about the axis 21.
  • the diameters of the peripheral bars 7a are here lower than those of the middle bars 7b.
  • the diameters of the different bars may be identical or different for reasons of organization of the perforating head. The goal is to obtain the highest overall density for the piercing head.
  • the diameters of the bars may be between 10 mm and 30 mm.
  • the bars are still made of a dense material, for example a tungsten alloy obtained by sintering. Because of the reduced diameter for the bars, we can here to adopt a material with even higher mechanical characteristics, for example a tungsten alloy whose elastic limit will be greater than or equal to 1500 Mega Pascals.
  • the body of the heads 2a is made of steel.
  • This embodiment makes it possible to easily obtain a front tip 2a having a high density. It is indeed easier to make dense bars of reduced diameter (of the order of 10 to 30 mm) than to achieve a large diameter front tip (greater than 150 mm) of such a sintered material.
  • FIGS. 5a and 5b show another embodiment which differs from the previous one only in the shape of the bars 7.
  • each bar therefore has a point 22 which extends outside the outer surface ogivée of the front tip 2a.
  • the axes of the bars 7a, 7b and 7c are again all parallel to the axis 21 of the ammunition.
  • FIGS. 6a and 6b show another embodiment similar to that of FIGS. 5a and 5b but in which each bar 7a or 7b has its axis 23a or 23b inclined with respect to the axis 21 of the penetration body 2.
  • the bars 7a of the outer ring have an axis 23a which is inclined at an angle ⁇ of the order of 20 ° to 30 °.
  • the bars 7b of the middle ring have an axis 23b which is inclined by an angle ⁇ of the order of 10 ° to 15 °.
  • This arrangement also makes it possible to favor the attachment of the front tip 2a on the target during an impact with an incidence.
  • this embodiment makes it possible to increase the attachment capacities without increasing the masses or the diameters of the bars 7.
  • FIG. 7a shows another embodiment similar to that of FIGS. 5a and 5b but in which the bars 7b of the middle ring have a length such that their tip 22 is substantially at the point 22 of the axial bar 7c (therefore at the level of the same plane 24).
  • Such an embodiment makes it possible to ensure simultaneous embrittlement of the target at several points of impact. This improves the perforation.
  • FIG. 7b represents an embodiment similar to that of FIG. 7a but in which all the bars have a length such that their point 22 is substantially at the point 22 of the axial bar 7c (therefore at the same plane 24 ).
  • the explosive charge 5 with a load of a different nature, for example a incendiary charge or one or more explosive and / or incendiary sub-munitions ejected after perforation of the target.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Powder Metallurgy (AREA)
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Abstract

The projectile (1) has a penetrating body (2) with an inner cavity (3) closed by a base (4) and made from a material with an elastic limit of at least 1200 MPa. The body has a forward point (2a) with at least one insert (7) of a material with high mechanical characteristics and denser than the body, such as a fritted tungsten alloy, made e.g. in the shape of segments fitted into a body recess and held in place by a ring (10). An independent claim is included for different insert shapes, including bars enclosed in or projecting from the projectile's nose.

Description

Le domaine technique de l'invention est celui des munitions permettant la destruction de cibles fortement protégées par une paroi par exemple de béton.The technical field of the invention is that of ammunition allowing the destruction of highly protected targets by a wall for example of concrete.

Il est connu, notamment par le brevet US6186072 , de définir une munition comportant un corps perforant dont l'inertie assure la traversée de parois de protection épaisses. Cette munition renferme un chargement explosif ou incendiaire qui se trouve initié lors de la perforation ou après la traversée de la paroi.It is known, in particular by the patent US6186072 , to define an ammunition comprising a perforating body whose inertia ensures the crossing of thick protective walls. This ammunition contains an explosive or incendiary charge that is initiated during the perforation or after crossing the wall.

Le corps perforant ce cette munition comporte un insert massif qui se trouve noyé à l'intérieur du matériau du corps.The body piercing this ammunition has a massive insert that is embedded in the body material.

Cet insert est réalisé en un alliage dense et résistant mécaniquement, choisi par exemple parmi les matériaux réfractaires et leurs alliages (tungstène, tantale, uranium).This insert is made of a dense and mechanically resistant alloy chosen for example from refractory materials and their alloys (tungsten, tantalum, uranium).

Le matériau du corps est formé par de l'acier qui est coulé autour de l'insert.The body material is formed of steel that is cast around the insert.

Cette munition présente l'inconvénient d'être complexe à fabriquer. Il est tout d'abord délicat et coûteux de réaliser un noyau dense de diamètre important (supérieur à 90mm) et présentant de hautes caractéristiques mécaniques d'une façon reproductible (densité supérieure à 13, limite élastique supérieur à 1000 Méga Pascals). En effet ces matériaux sont mis en oeuvre sous forme de poudres par les techniques de compression.This ammunition has the disadvantage of being complex to manufacture. It is first of all delicate and expensive to produce a dense core of large diameter (greater than 90 mm) and having high mechanical characteristics in a reproducible manner (density greater than 13, yield strength greater than 1000 mega pascals). Indeed, these materials are used in the form of powders by compression techniques.

Il est ensuite coûteux de couler un corps en acier autour d'un tel noyau dont les caractéristiques mécaniques risquent par ailleurs d'être dégradées par l'opération de coulée.It is then expensive to cast a steel body around such a core whose mechanical characteristics may also be degraded by the casting operation.

En fait, le matériau de l'insert décrit par US6186072 ne remplit qu'une fonction de lest et il n'a pas de capacité perforante propre.In fact, the material of the insert described by US6186072 performs only a ballast function and has no own perforating capacity.

Le brevet WO-87/07708 décrit un projectile perforant comprenant une enveloppe et un noyau en matériau lourd. Ce projectile est terminé par une coiffe en matériau léger (plastique ou aluminium) vide ou remplie d'un matériau incendiaire. Aucun insert n'est prévu dans la coiffe et par conséquent aucune disposition particulière n'est prévue.The patent WO-87/07708 discloses a piercing projectile comprising an envelope and a core of heavy material. This projectile is completed by a cap of light material (plastic or aluminum) empty or filled with incendiary material. No insert is provided in the cap and therefore no special provision is provided.

Le brevet FR-2771496 décrit un projectile classique comprenant un corps lourd en tungstène muni d'un élément avant désétégrateur en aluminium transmettant au projectile une sollicitation d'impact. Aucun insert n'est prévu dans cet élément avant et aucune précision n'est apportée relativement à sa densité par rapport au corps.The patent FR-2771496 describes a conventional projectile comprising a heavy body of tungsten with an element before aluminum desiccator transmitting the projectile a solicitation of impact. No insert is provided in this element before and no precision is made relative to its density relative to the body.

Les projectiles décrits dans ces deux derniers documents ne produisent donc aucun impact multiple sur la cible.The projectiles described in these last two documents therefore do not produce multiple impacts on the target.

C'est le but de l'invention que de proposer une munition perforante ne présentant pas de tels inconvénients.It is the object of the invention to provide a perforating munition that does not have such disadvantages.

Ainsi, la munition selon l'invention est de fabrication simplifiée.Thus, the munition according to the invention is of simplified manufacture.

Par ailleurs la munition selon l'invention permet d'assurer la perforation d'une cible bétonnée quel que soit l'angle d'impact sur la cible.In addition, the munition according to the invention makes it possible to ensure the perforation of a concrete target regardless of the angle of impact on the target.

Ainsi, l'invention a pour objet une munition perforante comprenant un corps de pénétration délimitant une cavité interne fermée par un culot, le corps de pénétration comportant une pointe avant comprenant au moins un insert solidaire de la pointe, ledit insert étant disposé dans un logement débouchant à l'extérieur du corps, caractérisée en ce que les inserts sont conformés en segments disposés radialement autour d'un prolongement axial du corps, lesdits segments étant rendus solidaires du corps par un moyen de liaison, ledit corps étant réalisé en un matériau ayant une limite élastique supérieure ou égale à 1200 Méga Pascals et ledit insert étant réalisé en un matériau à hautes caractéristiques mécaniques, plus dense que celui du corps.Thus, the subject of the invention is a perforating munition comprising a penetration body delimiting an internal cavity closed by a base, the penetration body comprising a front tip comprising at least one insert integral with the tip, said insert being disposed in a housing opening out of the body, characterized in that the inserts are shaped in segments arranged radially around an axial extension of the body, said segments being secured to the body by a connecting means, said body being made of a material having an elastic limit greater than or equal to 1200 Mega Pascals and said insert being made of a material with high mechanical characteristics, denser than that of the body.

Le moyen de liaison pourra comprendre au moins une bague entourant les inserts.The connecting means may comprise at least one ring surrounding the inserts.

Cette munition perforante pourra comporter également un nez en alliage dense disposé à l'extrémité du prolongement axial du corps et comportant une surface arrière en appui sur les segments.This perforating munition may also include a dense alloy nose disposed at the end of the axial extension of the body and having a rear surface bearing on the segments.

Selon un autre mode de réalisation de l'invention, chaque insert pourra être constitué par un barreau sensiblement cylindrique logé dans un alésage du corps de pénétration.According to another embodiment of the invention, each insert may be constituted by a substantially cylindrical bar housed in a bore of the penetration body.

La munition perforante pourra ainsi comporter également un insert axial comportant une pointe avant prolongeant le corps de pénétration.The perforating munition may thus also include an axial insert having a front tip extending the penetration body.

Cette munition pourra alors comporter une charge de poudre propulsive permettant d'éjecter l'insert hors du corps de pénétration.This munition may then comprise a charge of propellant powder for ejecting the insert out of the penetration body.

L'invention concerne aussi une munition perforante comprenant un corps de pénétration délimitant une cavité interne fermée par un culot, le corps de pénétration comportant une pointe avant comprenant des inserts solidaires de la pointe, lesdits inserts étant disposés dans un logement débouchant à l'extérieur du corps, caractérisée en ce que les inserts sont conformés en au moins une couronne de barreaux régulièrement disposés autour d'un axe du corps de pénétration, lesdits barreaux étant disposés radialement autour d'un prolongement axial du corps, lesdits barreaux étant rendus solidaires du corps par un moyen de liaison, ledit corps étant réalisé en un matériau ayant une limite élastique supérieure ou égale à 1200 Méga Pascals et ledit insert étant réalisé en un matériau à hautes caractéristiques mécaniques, plus dense que celui du corps.The invention also relates to a perforating munition comprising a penetration body delimiting an internal cavity closed by a base, the penetration body comprising a front tip comprising inserts integral with the tip, said inserts being arranged in a housing opening to the outside of the body, characterized in that the inserts are shaped in at least one ring of bars regularly arranged around an axis of the penetration body, said bars being arranged radially around an axial extension of the body, said bars being secured to the body by a connecting means, said body being made of a material having a yield strength greater than or equal to 1200 Mega Pascals and said insert being made of a material with high mechanical characteristics, denser than that of the body.

La munition pourra ainsi comporter deux couronnes de barreaux régulièrement disposés autour d'un axe du corps de pénétration.The ammunition can thus comprise two crowns of bars regularly arranged around an axis of the penetration body.

Les extrémités des barreaux pourront au contraire être en saillie à l'extérieur du corps de pénétration.The ends of the bars may instead be projecting outside the penetration body.

Chaque barreau pourra avoir son axe incliné par rapport à l'axe du corps de pénétration.Each bar may have its axis inclined relative to the axis of the penetration body.

Les extrémités des barreaux d'une couronne et d'une autre couronne et/ou d'un barreau axial pourront se trouver sensiblement dans un même plan.The ends of the bars of a crown and another ring and / or an axial bar may be substantially in the same plane.

La cavité interne pourra renfermer au moins un chargement explosif.The internal cavity may contain at least one explosive charge.

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 :

  • les figures 1a et 1b montrent un premier mode de réalisation d'une munition selon l'invention, la figure 1a étant une coupe longitudinale et la figure 1b une vue externe non coupée de cette munition,
  • les figures 2 et 3 montrent une munition perforante non conforme à l'invention,
  • les figures 4a, 4b et 4c montrent un quatrième mode de réalisation d'une munition selon l'invention, la figure 4a étant une coupe longitudinale, la figure 4b une vue externe non coupée de cette munition et la figure 4c étant une vue de face de l'ogive de cette munition,
  • les figures 5a et 5b montrent une variante de réalisation de ce quatrième mode de réalisation, la figure 5a étant une coupe longitudinale et la figure 5b une vue externe non coupée de cette munition,
  • les figures 6a et 6b montrent une autre variante de réalisation de ce quatrième mode de réalisation, la figure 6a étant une coupe longitudinale et la figure 6b une vue externe non coupée de cette munition.
  • les figures 7a et 7b montrent en coupe longitudinale deux autres variantes de réalisation de la munition selon 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:
  • FIGS. 1a and 1b show a first embodiment of a munition according to the invention, FIG. 1a being a longitudinal section and FIG. 1b an uncut external view of this ammunition,
  • FIGS. 2 and 3 show a perforating ammunition not in accordance with the invention,
  • FIGS. 4a, 4b and 4c show a fourth embodiment of a munition according to the invention, FIG. 4a being a longitudinal section, FIG. 4b an uncoupled external view of this ammunition and FIG. 4c being a front view. of the warhead of this ammunition,
  • FIGS. 5a and 5b show an alternative embodiment of this fourth embodiment, FIG. 5a being a longitudinal section and FIG. 5b an uncoupled external view of this ammunition,
  • FIGS. 6a and 6b show another alternative embodiment of this fourth embodiment, FIG. 6a being a longitudinal section and FIG. 6b an unconnected external view of this ammunition.
  • Figures 7a and 7b show in longitudinal section two other embodiments of the munition according to the invention.

En se reportant aux figures 1a et 1b une munition perforante 1 selon un mode de réalisation de l'invention comprend un corps de pénétration 2 qui délimite une cavité interne 3 fermée par un culot 4.Referring to FIGS. 1a and 1b, a perforating munition 1 according to one embodiment of the invention comprises a penetration body 2 which delimits an internal cavity 3 closed by a base 4.

Cette munition pourra être une bombe air / sol ou bien un missile ou une tête militaire de missile. Elle aura un diamètre supérieur à 100 mm et une longueur de l'ordre de 1,5m.This ammunition could be an air / ground bomb or a missile or a military missile head. It will have a diameter greater than 100 mm and a length of the order of 1.5 m.

En fonction des besoins opérationnels, elle pourra comporter une partie arrière (non représentée) incorporant un propulseur qui lui confèrera une portée ou une vitesse donnée.Depending on the operational requirements, it may include a rear portion (not shown) incorporating a thruster which will confer a range or a given speed.

Elle pourra également le cas échéant comporter un module de guidage / pilotage.It may also optionally include a guide / control module.

La cavité interne 3 renferme un chargement explosif 5 qui peut être initié par une fusée 6 disposée au voisinage du culot 4. La fusée sera conçue de façon à assurer la détection de la traversée d'une paroi puis à initier le chargement explosif une fois cette paroi traversée. De telles fusées sont bien connues de l'Homme du Métier. On pourra par exemple se reporter au brevet US5255608 qui décrit une telle fusée.The internal cavity 3 contains an explosive charge 5 which can be initiated by a fuse 6 disposed in the vicinity of the base 4. The fuze will be designed to ensure the detection of the crossing of a wall and then to initiate the explosive charge once this wall crossed. Such rockets are well known to those skilled in the art. For example, one can refer to the patent US5255608 which describes such a rocket.

Le corps de pénétration 2 comporte une pointe avant 2a qui est prolongée par une partie cylindrique arrière 2b délimitant la cavité interne 3.The penetration body 2 comprises a front tip 2a which is extended by a rear cylindrical portion 2b delimiting the internal cavity 3.

Ce corps est réalisé en un matériau à hautes caractéristiques mécanique, c'est à dire un matériau dont la limite élastique est supérieure ou égale à 1200 Méga Pascals. On pourra par exemple utiliser de l'acier 35NCD16.This body is made of a material with high mechanical characteristics, that is to say a material whose elastic limit is greater than or equal to 1200 Mega Pascals. For example, 35NCD16 steel may be used.

Conformément à l'invention la pointe avant 2a comprend des inserts 7 réalisés en un matériau plus dense que celui du corps 2. Ces inserts sont réalisés en un matériau dense à haute caractéristiques mécaniques. On choisira un matériau de densité supérieure ou égale à 17 et ayant une limite élastique supérieure ou égale à 1000 Méga Pascals. On pourra par exemple utiliser un alliage de tungstène à haute limite élastique et obtenu par frittage. On pourrait également réaliser les barreaux en uranium appauvri ou en tantale.According to the invention the front tip 2a comprises inserts 7 made of a denser material than that of the body 2. These inserts are made of a dense material with high mechanical characteristics. A material with a density greater than or equal to 17 and having a yield strength greater than or equal to 1000 mega pascals will be chosen. For example, it is possible to use a high-yielding tungsten alloy obtained by sintering. One could also make the bars depleted uranium or tantalum.

Les inserts 7 sont ici conformés en segments disposés radialement autour d'un prolongement axial 8 cylindrique du corps 2.The inserts 7 are here shaped in segments arranged radially around an axial cylindrical axial extension 8 of the body 2.

Ainsi chaque segment se trouve en contact avec le corps 2, d'une part au niveau du prolongement axial 8 et d'autre part avec un épaulement 9 du corps 2. L'espace libre entourant le prolongement axial 8 constitue ainsi un logement pour les inserts.Thus each segment is in contact with the body 2, on the one hand at the axial extension 8 and on the other hand with a shoulder 9 of the body 2. The free space surrounding the axial extension 8 thus constitutes a housing for the inserts.

Chaque insert 7 se trouve également en contact avec deux autres inserts voisins. L'ensemble des inserts forme ainsi la partie ogivée de la pointe avant 2a du corps de pénétration 2.Each insert 7 is also in contact with two other neighboring inserts. The set of inserts thus forms the ogivated part of the front tip 2a of the penetration body 2.

Les inserts 7 sont rendus solidaires du corps par un moyen de liaison qui comprend au moins une bague 10 entourant les inserts 7. Cette bague sera réalisée en acier. Elle se logera dans une gorge 11 formée par la juxtaposition d'encoches portées par chaque insert.The inserts 7 are made integral with the body by a connecting means which comprises at least one ring 10 surrounding the inserts 7. This ring will be made of steel. It will be housed in a groove 11 formed by the juxtaposition of notches carried by each insert.

La munition 1 comporte également un nez 12 qui est lui aussi réalisé en un alliage dense. Ce nez est fixé à une extrémité 14 de moindre diamètre portée par le prolongement axial 8 du corps 2. Le nez 12 comporte une surface arrière 13 en appui sur les inserts 7.The munition 1 also comprises a nose 12 which is also made of a dense alloy. This nose is fixed to an end 14 of smaller diameter carried by the axial extension 8 of the body 2. The nose 12 has a rear surface 13 resting on the inserts 7.

Le nez 12 est fixé sur l'extrémité 14 par exemple par filetage. Il permet de transmettre aux différents inserts 7 le choc lors de l'impact sur une cible.The nose 12 is fixed on the end 14 for example by threading. It makes it possible to transmit to the various inserts 7 the shock during the impact on a target.

Ainsi la munition selon l'invention associe une ogive de diamètre important (supérieur à 90 mm) et à capacité perforante importante avec un corps en acier qui a pour seule fonction d'assurer l'emport du chargement explosif et le maintien des inserts perforants.Thus, the munition according to the invention combines a large diameter warhead (greater than 90 mm) and a large perforating capacity with a steel body whose sole function is to ensure the carrying of the explosive charge and the maintenance of perforating inserts.

Les inserts 7 ont des dimensions raisonnables (section de l'ordre de 2000 mm2 à 6000 mm2) ce qui autorise leur fabrication suivant les techniques de frittage déjà mises en oeuvre pour les projectiles flèches d'artillerie.The inserts 7 have reasonable dimensions (section of the order of 2000 mm 2 to 6000 mm 2 ) which allows their manufacture according to the sintering techniques already used for the artillery arrows projectiles.

Grâce à la conception de la munition selon l'invention, il devient également possible d'améliorer une munition en remplaçant à l'issue d'une phase de stockage les inserts 7 prévus initialement par des inserts présentant des caractéristiques mécaniques améliorées.Thanks to the design of the munition according to the invention, it also becomes possible to improve an ammunition by replacing at the end of a storage phase inserts 7 initially provided by inserts having improved mechanical characteristics.

La figure 2 montre une munition perforante 1.Figure 2 shows a piercing ammunition 1.

Cette munition perforante ne diffère de la précédente que par la structure de la pointe avant 2a.This piercing ammunition differs from the previous one only by the structure of the front tip 2a.

La pointe avant 2a comprend ici un alésage axial 15 à l'intérieur duquel est positionné un insert 7 ayant la forme d'un barreau sensiblement cylindrique et réalisé en un matériau plus dense que celui du corps 2.The front tip 2a here comprises an axial bore 15 inside which is positioned an insert 7 having the shape of a substantially cylindrical bar and made of a material denser than that of the body 2.

La pointe avant 16 de cet insert a une forme ogivée qui prolonge le corps de pénétration 2.The front tip 16 of this insert has an ogive shape that extends the penetration body 2.

Cet insert 7 aura ainsi un diamètre de l'ordre de 30 à 40 mm pour un corps de pénétration 2 de diamètre 90 mm. Sa fabrication est ainsi facilitée. La mise en oeuvre d'un alliage de tungstène à hautes caractéristiques mécaniques (limite élastique supérieure ou égale à 1000 Méga Pascals) permet de conférer à cette pointe un caractère perforant et non de simple lest. On améliore ainsi les capacités de perforation de la munition pour une masse donnée.This insert 7 will thus have a diameter of the order of 30 to 40 mm for a penetration body 2 of diameter 90 mm. Its manufacture is thus facilitated. The implementation of a tungsten alloy with high mechanical characteristics (yield strength greater than or equal to 1000 mega pascals) makes it possible to confer on this point a perforating character and not mere ballast. This improves the perforation capabilities of the ammunition for a given mass.

La munition représentée à la figure 3 comprend également un insert unique 7 en matériau dense disposé dans un alésage axial 15.The ammunition shown in FIG. 3 also comprises a single insert 7 made of dense material disposed in an axial bore 15.

Cet insert 7 comporte une cavité interne 17 à l'intérieur de laquelle est disposée une charge de poudre propulsive 18.This insert 7 has an internal cavity 17 inside which is disposed a charge of propellant powder 18.

Un dispositif 19 permettant l'allumage de cette charge est logé dans le corps 2. Il est relié par une liaison filaire 20 à la fusée 6.A device 19 for igniting this charge is housed in the body 2. It is connected by a wire connection 20 to the rocket 6.

Cette dernière comportera alors un module chronométrique ou bien un module de détection de proximité (relié à une antenne non représentée solidaire de l'ogive du corps 2) qui permettra de déclencher l'allumage de la charge propulsive 18 avant l'impact sur une cible et à une distance de celle ci de l'ordre de 3 à 4 calibres.The latter will then include a chronometric module or a proximity detection module (connected to an antenna not shown integral with the body's warhead 2) which will trigger the ignition of the propellant charge 18 before the impact on a target and at a distance from it of the order of 3 to 4 calibers.

La charge propulsive 18 assurera l'éjection de l'insert 7 hors du corps de pénétration 2. Il se trouvera donc propulsé vers la cible. Le différentiel de vitesse entre l'insert 7 et le corps 2 sera de l'ordre de 200 m/s. Une telle disposition permet d'accroître les capacités de perforation de la munition sans pour autant augmenter sa vitesse.The propellant charge 18 will ensure the ejection of the insert 7 out of the penetration body 2. It will therefore be propelled towards the target. The speed differential between insert 7 and the body 2 will be of the order of 200 m / s. Such an arrangement increases the perforation capabilities of the munition without increasing its speed.

L'insert assurera le percement d'un avant trou dans la cible, le corps de pénétration impactera ensuite la cible au niveau de cet avant trou.The insert will ensure the drilling of a pre-hole in the target, the penetration body will then impact the target at this pre-hole.

Les figures 4a, 4b et 4c montrent un autre mode de réalisation d'une munition perforante selon l'invention.Figures 4a, 4b and 4c show another embodiment of a perforating munition according to the invention.

Ce mode ne diffère des précédents que par la structure de la tête perforante 2a qui comprend ici plusieurs barreaux 7a, 7b, 7c sertis dans des alésages aménagés dans le corps de la pointe 2a.This mode differs from the previous ones only in the structure of the piercing head 2a which here comprises several bars 7a, 7b, 7c set in bores arranged in the body of the tip 2a.

Chaque barreau 7a, 7b, 7c est cylindrique et l'axe de son alésage est parallèle à l'axe 21 de la tête perforante 2a.Each bar 7a, 7b, 7c is cylindrical and the axis of its bore is parallel to the axis 21 of the piercing head 2a.

Les barreaux 7a et 7b sont ainsi répartis en deux couronnes concentriques entourant l'axe 21 de la tête perforante. Un barreau 7c occupe par ailleurs un alésage coaxial à la tête 2a (voir aussi figure 4c).The bars 7a and 7b are thus distributed in two concentric rings surrounding the axis 21 of the perforating head. A bar 7c also occupies a coaxial bore to the head 2a (see also Figure 4c).

Il y a donc autour du barreau axial 7c une première couronne ou couronne médiane comprenant huit barreaux 7b régulièrement répartis autour de l'axe 21 et une deuxième couronne ou couronne externe comprenant seize barreaux 7a régulièrement répartis autour de l'axe 21.There is therefore around the axial bar 7c a first ring or middle ring comprising eight bars 7b regularly distributed around the axis 21 and a second ring or outer ring comprising sixteen bars 7a regularly distributed about the axis 21.

Les diamètres des barreaux périphériques 7a sont ici inférieurs à ceux des barreaux médians 7b. Les diamètres des différents barreaux pourront être identiques ou différents pour des raisons d'organisation de la tête perforante. Le but recherché est d'obtenir la densité globale la plus forte pour la tête perforante. Les diamètres des barreaux pourront être compris entre 10 mm et 30 mm.The diameters of the peripheral bars 7a are here lower than those of the middle bars 7b. The diameters of the different bars may be identical or different for reasons of organization of the perforating head. The goal is to obtain the highest overall density for the piercing head. The diameters of the bars may be between 10 mm and 30 mm.

Les extrémités des différents barreaux sont usinées de telle sorte qu'ils soient affleurants avec une surface externe ogivée de la pointe avant 2a (voir figures 4a et 4b) du corps de pénétration 2. Ainsi les barreaux 7 ne perturbent pas l'aérodynamisme de la munition 1.The ends of the various bars are machined so that they are flush with an external surface ogivée of the front tip 2a (see Figures 4a and 4b) of the penetration body 2. Thus the bars 7 do not disturb the aerodynamics of the ammunition 1.

Les barreaux sont encore réalisés en un matériau dense, par exemple en un alliage de tungstène obtenu par frittage. Du fait du diamètre réduit pour les barreaux, on pourra ici adopter un matériau à caractéristiques mécaniques encore supérieures, par exemple un alliage de tungstène dont la limite élastique sera supérieure ou égale à 1500 Méga Pascals. Le corps de la têtes 2a est réalisé en acier.The bars are still made of a dense material, for example a tungsten alloy obtained by sintering. Because of the reduced diameter for the bars, we can here to adopt a material with even higher mechanical characteristics, for example a tungsten alloy whose elastic limit will be greater than or equal to 1500 Mega Pascals. The body of the heads 2a is made of steel.

Ce mode de réalisation permet d'obtenir aisément une pointe avant 2a ayant une forte densité. Il est en effet plus facile de réaliser des barreaux denses de diamètre réduit (de l'ordre de 10 à 30 mm) que de réaliser une pointe avant de gros diamètre (supérieur à 150mm) en un tel matériau fritté.This embodiment makes it possible to easily obtain a front tip 2a having a high density. It is indeed easier to make dense bars of reduced diameter (of the order of 10 to 30 mm) than to achieve a large diameter front tip (greater than 150 mm) of such a sintered material.

De plus il serait délicat de réaliser un corps 2 de munition intégralement en tungstène fritté et comprenant une partie avant massive raccordée à un partie arrière mince et délimitant une cavité 3.In addition, it would be difficult to make a fully sintered tungsten munition body 2 comprising a massive front part connected to a thin rear part and delimiting a cavity 3.

Il est bien entendu possible de prévoir un nombre et une répartition différentes pour les barreaux.It is of course possible to provide a different number and distribution for the bars.

Les figures 5a et 5b représentent un autre mode de réalisation qui ne diffère du précédent que par la forme des barreaux 7.FIGS. 5a and 5b show another embodiment which differs from the previous one only in the shape of the bars 7.

Suivant ce mode de réalisation les extrémités des barreaux 7a et 7b sont en saillie à l'extérieur du corps de pénétration 2. Chaque barreau comporte donc une pointe 22 qui s'étend en dehors de la surface externe ogivée de la pointe avant 2a.According to this embodiment, the ends of the bars 7a and 7b protrude outside the penetration body 2. Each bar therefore has a point 22 which extends outside the outer surface ogivée of the front tip 2a.

Il en résulte une capacité d'accrochage plus forte de la pointe avant 2a lors d'un impact sur une cible avec une incidence.This results in a stronger attachment of the nose before 2a during an impact on a target with an incidence.

Les axes des barreaux 7a, 7b et 7c sont là encore tous parallèles à l'axe 21 de la munition.The axes of the bars 7a, 7b and 7c are again all parallel to the axis 21 of the ammunition.

Les figures 6a et 6b représentent un autre mode de réalisation analogue à celui des figures 5a et 5b mais dans lequel chaque barreau 7a ou 7b a son axe 23a ou 23b incliné par rapport à l'axe 21 du corps de pénétration 2.FIGS. 6a and 6b show another embodiment similar to that of FIGS. 5a and 5b but in which each bar 7a or 7b has its axis 23a or 23b inclined with respect to the axis 21 of the penetration body 2.

Ainsi les barreaux 7a de la couronne externe ont un axe 23a qui est incliné d'un angle α de l'ordre de 20° à 30°.Thus the bars 7a of the outer ring have an axis 23a which is inclined at an angle α of the order of 20 ° to 30 °.

Les barreaux 7b de la couronne médiane ont un axe 23b qui est incliné d'un angle β de l'ordre de 10° à 15°.The bars 7b of the middle ring have an axis 23b which is inclined by an angle β of the order of 10 ° to 15 °.

Cette disposition permet également de favoriser l'accrochage de la pointe avant 2a sur la cible lors d'un impact avec une incidence.This arrangement also makes it possible to favor the attachment of the front tip 2a on the target during an impact with an incidence.

Par rapport au précédent, ce mode de réalisation permet d'accroître les capacités d'accrochage sans augmenter les masses ou les diamètres des barreaux 7.Compared with the previous one, this embodiment makes it possible to increase the attachment capacities without increasing the masses or the diameters of the bars 7.

La figure 7a représente un autre mode de réalisation analogue à celui des figures 5a et 5b mais dans lequel les barreaux 7b de la couronne médiane ont une longueur telle que leur pointe 22 se trouve sensiblement au niveau de la pointe 22 du barreau axial 7c (donc au niveau d'un même plan 24).FIG. 7a shows another embodiment similar to that of FIGS. 5a and 5b but in which the bars 7b of the middle ring have a length such that their tip 22 is substantially at the point 22 of the axial bar 7c (therefore at the level of the same plane 24).

Un tel mode de réalisation permet d'assurer une fragilisation simultanée de la cible au niveau de plusieurs point d'impacts. On améliore ainsi la perforation.Such an embodiment makes it possible to ensure simultaneous embrittlement of the target at several points of impact. This improves the perforation.

La figure 7b représente un mode de réalisation analogue à celui de la figure 7a mais dans lequel tous les barreaux ont une longueur telle que leur pointe 22 se trouve sensiblement au niveau de la pointe 22 du barreau axial 7c (donc au niveau du même plan 24).FIG. 7b represents an embodiment similar to that of FIG. 7a but in which all the bars have a length such that their point 22 is substantially at the point 22 of the axial bar 7c (therefore at the same plane 24 ).

On multiplie ainsi le nombre de points d'impacts simultanés sur la cible.This multiplies the number of simultaneous impact points on the target.

Il serait bien entendu possible de prolonger ainsi les barreaux inclinés tels que représentés aux figures 6a et 6b.It would of course be possible to extend the sloping bars as shown in Figures 6a and 6b.

On pourrait également mettre les extrémités des barreaux des couronnes externe 7a et médiane 7b au niveau d'un même plan tout en laissant l'extrémité du barreau 7c en retrait ou bien en saillie par rapport aux couronnes.It would also be possible to put the ends of the bars of the outer crowns 7a and median 7b at the same plane while leaving the end of the bar 7c set back or protruding from the rings.

Diverses variantes sont possibles sans sortir du cadre de l'invention.Various variants are possible without departing from the scope of the invention.

Il est ainsi possible de combiner les munitions perforantes des figures 4a à 7b (barreaux multiples) avec celle de la figure 3 (barreau propulsé).It is thus possible to combine the perforating munitions of Figures 4a to 7b (multiple bars) with that of Figure 3 (propelled bar).

On pourra ainsi prévoir une charge propulsive permettant d'éjecter le barreau axial 7c avant impact sur la cible. Les autres barreaux répartis sur les couronnes restant fixes par rapport à la pointe avant 2a.It will be possible to provide a propellant charge for ejecting the axial bar 7c before impact on the target. The other bars distributed on the crowns remaining fixed relative to the front tip 2a.

On pourra également remplacer le chargement explosif 5 par un chargement de nature différente, par exemple une charge incendiaire ou bien une ou plusieurs sous munitions explosives et/ou incendiaires éjectées après perforation de la cible.It is also possible to replace the explosive charge 5 with a load of a different nature, for example a incendiary charge or one or more explosive and / or incendiary sub-munitions ejected after perforation of the target.

Claims (13)

  1. Perforating ammunition (1) comprising a penetration body (2) delimiting an internal cavity (3) closed by a base (4), the penetration body (2) incorporating a front nose (2a) comprising at least one insert (7, 7a, 7b, 7c) integral with the nose (2a), said insert being arranged in a housing opening outside of the body, characterised in that the inserts (7) are organised into segments arranged radially around an axial extension (8) of the body (2), such segments being made integral with the body (2) by linking means, said body being made of a material having a limit of elasticity greater than or equal to 1200 Mega Pascals and said insert being made of a material with high mechanical properties, denser than that of the body.
  2. Perforating ammunition according to Claim 1, wherein the linking means comprise at least one ring (10) surrounding the inserts (7).
  3. Perforating ammunition according to one of Claims 1 or 2, wherein it incorporates a nose (12) made of a dense alloy arranged at the end of the axial extension (8) to the body and incorporating a rear surface (13) pressing on the segments (7).
  4. Perforating ammunition according to Claim 1, wherein each insert (7) is constituted by a substantially cylindrical bar housed in a bore of the penetration body (2).
  5. Perforating ammunition according to Claim 4, wherein it incorporates as well an axial insert (7) incorporating a front nose extending the penetration body (2).
  6. Perforating ammunition according to Claim 5, wherein it incorporates a propellant powder charge (18) enabling the insert to be ejected out of the penetrating body (2).
  7. Perforating ammunition (1) comprising a penetration body (2) delimiting an internal cavity (3) closed by a base (4), the penetration body (2) incorporating a front nose (2a) comprising inserts (7, 7a, 7b, 7c) integral with the nose (2a), said inserts being arranged in a housing opening outside of the body, characterised in that the inserts (7) are organised into at least one crown of bars (7a, 7b) arranged equally around an axe (21) of the penetration body (2), said bars being placed evenly around an axial extension part (8) of the body (2), said bars being made integral with the body (2) by linking means, said penetration body being made of a material having a limit of elasticity greater than or equal to 1200 Mega Pascals made and said insert being made of a material with high mechanical properties, denser than that of the body.
  8. Perforating ammunition according to Claim 7, wherein it incorporates two crowns of bars (7a, 7b) evenly spaced around an axis of the penetration body (2).
  9. Perforating ammunition according to one of Claims 7 or 8, wherein the ends of the bars (7a, 7b) are flush with an external surface of the penetration body (2).
  10. Perforating ammunition according to one of Claims 7 or 8, wherein the ends of the bars (7a, 7b) protrude out of the penetration body (2).
  11. Perforating ammunition according to Claim 10, wherein each bar (7a, 7b) has its axis inclined with respect to the axis (21) of the penetration body (2).
  12. Perforating ammunition according to one of Claims 10 or 11, wherein the ends of the bars (7a, 7b) of a crown and another crown and/or an axial bar (7c) lie substantially in the same plane (24).
  13. Perforating ammunition according to one of Claims 1 to 12, wherein the internal cavity (3) encloses at least one explosive charge (5).
EP04292218A 2003-10-03 2004-09-16 Armour perforating projectile Active EP1521052B1 (en)

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US7748031B2 (en) * 2005-07-08 2010-06-29 Sandisk Corporation Mass storage device with automated credentials loading
FR2958391B1 (en) 2010-03-30 2012-07-27 Nexter Munitions PENETRATEUR WITH KINETIC ENERGY.
US8985026B2 (en) 2011-11-22 2015-03-24 Alliant Techsystems Inc. Penetrator round assembly
FR2987891B1 (en) * 2012-03-06 2014-09-26 Nexter Munitions PROJECTILE UNDER CALIBER HAVING A DRAINED HEAD STRUCTURE
IL219010A (en) 2012-04-03 2016-11-30 Amon Jacob Missile warhead
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
US11027859B2 (en) 2017-10-16 2021-06-08 The Boeing Company Variable stiffness flyer plate for penetration device

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GB107252A (en) * 1916-06-27 1917-06-27 William Warburton Improvements in the Manufacture of Armour Piercing Bursting Shells or Projectiles.
DE1208656B (en) * 1962-09-18 1966-01-05 Kohlswa Jernverks Ab Projectile for armor-piercing weapons and method for making such a projectile
DE1428679C1 (en) * 1964-12-29 1977-09-15 Deutsch Franz Forsch Inst Hard core bullet for fighting tank targets
US3464356A (en) * 1967-12-28 1969-09-02 Us Army Self-stabilizing rod penetrators
CH511415A (en) * 1969-08-05 1971-08-15 Oerlikon Buehrle Ag Projectile, especially an anti-tank shell
US4597333A (en) * 1983-07-08 1986-07-01 Rheinmetall G.M.B.H. Two-part armor-piercing projectile
GB8417898D0 (en) * 1983-10-27 1998-09-09 Rheinmetall Gmbh Projectile
US4573412A (en) * 1984-04-27 1986-03-04 The United States Of America As Represented By The Secretary Of The Army Plug nozzle kinetic energy penetrator rocket
WO1987007708A1 (en) 1986-06-09 1987-12-17 Royal Ordnance Pld Armour piercing projectile
DE9018051U1 (en) * 1990-07-24 1994-04-07 Rheinmetall Gmbh, 40882 Ratingen Sub-caliber balancing projectile
US5255608A (en) 1992-12-16 1993-10-26 The United States Of America As Represented By The Secretary Of The Air Force Real-time identification of a medium for a high-speed penetrator
US6186072B1 (en) 1999-02-22 2001-02-13 Sandia Corporation Monolithic ballasted penetrator
DE10332257A1 (en) * 2003-07-16 2005-02-03 Rheinmetall W & M Gmbh warhead

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DE602004007080D1 (en) 2007-08-02
EP1701131B1 (en) 2010-04-14
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US7063020B2 (en) 2006-06-20
FR2860579B1 (en) 2007-10-05
ATE365307T1 (en) 2007-07-15
EP1701131A3 (en) 2006-10-04
FR2860579A1 (en) 2005-04-08
ES2344597T3 (en) 2010-09-01
DE602004007080T2 (en) 2008-02-21
EP1521052A1 (en) 2005-04-06
EP1701131A2 (en) 2006-09-13
ES2288669T3 (en) 2008-01-16

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