EP1292804B1 - Self-driven projectile with a penetrator core - Google Patents

Abstract

A self-propelled projectile comprises a penetrating core (1) that contains explosive material (4,3a). A hollow chamber (2) coaxial to the core contains a non-lethal substance. If the core is placed in a ballistic weapon, the same non-ballistic conditions as those of conventional weapons can be controlled so the drives, platforms and logistics can be used. The projectile can contain tear gas.

Description

The present invention relates to a self-propelled projectile according to the preamble of claim 1.

In so-called peace-keeping measures, it has been proven that at present none of the multinational forces has adequate weapons systems. - For example, a single entrenched sniper today can only be fought with heavy weapons, if this has taken precautions against tear gas and the like.

The tactical leaders of such missions are therefore calling for weapon systems that selectively break through bunker targets without causing total object damage.

Attempts by Denel (Pty) Ltd, Firgrove, Republic of South Africa, have shown that it is possible to shoot a blast arrow, also known as an explosive penetrator, through bunker targets such as concrete, slightly metal armor, and sandbags, even if the Impact velocity in the target is below the speed of sound. In addition, the blasting arrow at the finish, i. behind the armor, using its central explosive charge to fragment and there to achieve a relatively large destructive effect.

The development of a special weapon system for heavy police-type missions (against bunker targets) can not be financially represented because at the same time the entire logistics of conventional combat troops would have to be changed.

Known is a self-propelled projectile (FR -A1- 1 209 802) according to the preamble of claim 1. It is an offensive weapon that causes large collateral damage.

A small-caliber special cartridge is described in the Waffen Revue 7, December 1972, page 1163 (Journal Verlag Schwend GmbH, Schwäbisch Hall, DE), which has tear gas in a hard core of tungsten tungsten. The bullet is intended to penetrate armor steel from 20 to 30 mm thick and, after its penetration, can carry a very small amount of irritant to the target.

For an overview of projectiles (Lenselink et al., "Notes on small and medium caliber military cartridges - cartridges and projectiles in drawings and pictures" 1986, Delfia press, Rijswijk, NL; XP002153616) is also mentioned to small caliber bullets that non-lethal substances can be stored.

It is therefore the object of the present invention to use an arrowhead, in particular a blasting arrow for bunker targets, in such a way that an optimal effect localized in the target is achieved.

The arrow level should penetrate the usual walls of buildings, armored glass but also reinforced concrete shelters, lightly armored vehicles with plates made of aluminum alloys or barricades, in particular from sandbags, and persons behind it are incapacitated or institutions are disabled.

In addition, the subject invention should use existing conventional weapon systems and / or concepts and above all their launchers (platforms) can be used.

The invention should be suitable for non-lethal as well as lethal acting inserts.

This object is achieved by the solution according to the features of claims 1 or 2.

Surprisingly, a penetrating core penetrates a bunker target and the like, without being damaged itself, so that active ingredients can be introduced into the target area, which are set to a preselected effect.

In dependent claims advantageous embodiments of the subject invention are characterized.

If a penetration core according to claim 2 is used, this allows the use of existing weapon systems and in particular of their existing platforms. By simply replacing a warhead with a bullet jacket of the same outer ballistics, a very targeted effect can be achieved without, for example, the training and logistics of the troop undergoes significant changes.

Especially for police operations, a non-lethal drug is suitable, which temporarily puts one or more people out of action, for example, in raids or hostage-taking.

It is particularly easy to transport highly tearing agents behind a wall or behind bulletproof glass when they are of the type according to claim 3.

The design of a projectile according to claim 4 results in a lethal weapon acting in a larger space. Splinter formation takes place by means known per se.

Has proven particularly useful a stepped tip, which penetrates virtually intact even heavily reinforced concrete walls.

Advantageously, a taper of the arrow shaft according to claim, since this reduces the frictional resistance during penetration.

By suitable notched grooves, claim 5, for example in the axial direction of the breakdown core can be opened with minimal forces from the inside.

A mechanical connection between the penetration core and the container for the non-lethal drug ensures its automatic distribution; Claim 6.

Of great tactical importance is the simultaneous or isolated incorporation of fogging agents according to claim 7.

In subsequent figures, embodiments of the subject invention are shown.

Fig. 1

einen Durchschlagskern in Schnittdarstellung,

Fig. 2

eine sogenanante Panzerfaust mit integriertem Durchschlagskern für nicht letale Einsätze,

Fig. 3

die ballistische Haube einer Panzerfaust gemäss Fig. 2, in Schnittdarstellung und

Fig. 4

das charakteristische Geschwindigkeitsverhalten der Panzerfaust nach Fig. 2 auf dem Flug ins Ziel.

Show it:

Fig. 1

a breakdown core in section,

Fig. 2

a so-called Panzerfaust with integrated Durchschlagskern for non-lethal operations,

Fig. 3

the ballistic hood of a bazooka according to FIG. 2, in sectional view and

Fig. 4

the characteristic speed behavior of the bazooka of Fig. 2 on the flight to the finish.

In FIG. 1, 1 designates an arrow-like penetrating core. This has a cavity 2, which tapers towards the tip and there merges seamlessly into a dome. In the front part of the cavity 2 is an active charge 3, stored in the present case, a phlegmatized high-performance explosive void-free. Behind the active charge 3 is a compensating spring 7 with a central ignition channel 8; after the spring 7 a precharge 4 is arranged, which forms a detonator 5 'of an autonomous ignition device 5 a known ignition chain. At the rear of the breakdown core 1 is a mounting flange 6, which allows easy integration of the core 1 with a drive A, not shown here.

The tip 10 of the punching core 1 is offset in the direction of the rear side. A relatively blunt arrow angle α1 merges into a more acute angle α2 in a subsequent taper shank 11; in the direction of the rear region of the cylindrical arrow shaft 12 is tapered by a small angle β, which facilitates its penetration into the target.

The shape of a punching core 1 shown in FIG. 1 shows a good penetration capability that is also surprising to the person skilled in the art. even in a speed range of 160 - 240 m / s. Obviously, the hard tip 10 "clears" most of the materials with a sweep angle α1 on which a characteristic energy of 50,000 joules acts. There is no clear physical explanation for the phenomenal effect of the breakdown kernel 1.

The representation of FIG. 2 shows a simplified shot of a tube 22 rocket in the characteristic shape of a bazooka. The firing speed v ₀ is a maximum of 300 m / s. The drive A is configured in a conventional manner, as is the rear-side tail 21. In contrast to the conventional bazooka is behind a two-piece ballistic hood 20 on the drive A placed on the penetration core 1 of a non-lethal active substance contains 3b.

Further details of this embodiment are shown in FIG. 3.

In contrast to the illustration in FIG. 1, this is a purely lethal penetration core 1. In the cavity 2 there is an explosive charge 3a, in which additionally a fragment-forming ring 3c (splinter matrix) is embedded, which together with the fragmenting core during detonation 1 forms a plurality of splinters of different sizes.

The mounting flange 6 is screwed here form-fit in the hood 20. In the middle part of the hood 20, a support ring 23 is arranged, which merges into a centering ring 24 and the punch core 1 axially symmetrically centered. By an additional weight 25 is the focus 9 - symbolically marked - shifted to the same position as a conventional bazooka. The further embodiment, such as the cap 27 (Spikeattrappe called) and the rear-side adapter 26 ensure trouble-free cultivation of the entire head to the drive A. The resulting ballistics is identical to that of the conventional bazooka, which is known to contain a hollow charge.

FIG. 4 shows the velocity profile of a device according to the invention as a function of the trajectory (firing distance) D from launch to impact on the target a _o and the detonation a _z .

Important for the correct operation and safety of the use of the subject invention is an ignition device which pivots from the secured state via a Akzellerations-unlocking A-E and a retardation release R-E detonator 5 'in the focus shown in FIGS. 1 and 3.

Suitable ignition devices with an integrated ignition generator, security elements and a high-power detonator are commercially available (EMS-Patvag AG, CH-7013 Domat / Ems, type PEPZ-05). This detonator should have a shock resistance of 100,000 g. The operation of such igniters is described in detail in EP-A-0 104 138, in conjunction with US Pat. No. 5,269,223. - It follows that the igniters are adaptable to almost any conceivable with the subject invention use.

The penetration core 1 is advantageously made of an alloyed tempering steel according to DIN 34CrNiMo6 and also commercially available (Gebr. Böhler & Co. AG, CH-8304 Wallisellen, type V155). The angle α1 is 70 ° in the preferred embodiment; the angle α2 is 30 ° and the β (suit) is 1.4 o / oo. For obvious reasons, the hardness profile of the punching core 1 is adjusted decreasing from the tip to the rear.

It has been shown that modern explosives (PBXN-9 DYNO Defense Products, NO) survive the impact shock in the target and still require no additional summons 4 to the ignition.

The subject of the invention allows a completely new way of combating crime:

For example, if a hostage-taker entrenches himself in a counter room of a bank, a core core 1 can be fired with capsaicin 3b in the direction of hostage takers by locating (aiming) of the mobile without a line of sight. A projectile suddenly penetrating through a wall or barrier paralyzes it in shock, so that no resistance can take place, within the next second the core detonates; a relatively large amount of capsaicin is sprayed and sets the hostage taker for a long time completely out of action, so that at the same time the police can walk undamaged into the building and do their job.

In order not to endanger third parties, when using non-lethal agents such as tear gas, mist etc. only small amounts of explosives are installed in the cavity 2. By suitable indentations in the inner wall already suffice for low centripetal forces in order to allow the active substance to emerge from a bursting core or to allow it to be sprayed, in particular if there is a mechanical connection (gluing) between the active substance container and the core.

Depending on the ignition device used, the charge of lethal or non-lethal active substances and additional active charges, an individual and safe fight against targets with different potential hazards can take place over a wide range of distances. The bullet and the penetration core are accordingly modular and interchangeable and can be optimized in terms of collateral damage and risk .- As a rule, only results in a hole in the size of the caliber of the penetration core in the target or the wall to be breached so that the consequential damage of a Use are low.

Claims (7)

1. A self-propelled projectile having a maximum firing velocity of less than 300 m/s, having a penetrator core and a charge at least partially disintegrating the said core in the target, having an autonomous ignition device, having an ignition generator and an acceleration-dependent safety element with an integrated detonator, characterised in that the penetrator core (1) has a stepped tip (10), which has a smaller dart angle (α1) that changes into a larger acute angle (α2), and which has a dart shank (12) that tapers towards the rear end by the angle (β), and in that, in the penetrator core, at least at the rear end, there is provided a coaxial cavity (2) which encases both a bursting charge (4; 3a) for opening the cavity (2) and a non-lethal active substance (3b).
2. A self-propelled projectile according to claim 1, characterised in that the penetrator core (1) is set into the central axis of a projectile case (20) and in that the said projectile case (20) has the same exterior ballistics as that of a projectile provided with a hollow charge or with a large-calibre bursting charge having a fragmentation case.
3. A self-propelled projectile according to claim 1 or claim 2, characterised in that the non-lethal active substance (3b) is capsaicin or tear gas.
4. A self-propelled projectile according to claim 1 or claim 2, characterised in that the penetrator core (1) is fragment-forming and/or in that a fragment-forming ring (3c) is provided in the cavity (2).
5. A self-propelled projectile according to claim 1 or claim 2, characterised in that there are provided in the interior walls of the cavity (2) notch-type grooves which break open the penetrator core (1) in a predefined manner on detonation.
6. A self-propelled projectile according to claim 3, characterised in that the capsaicin is encased in a plastic capsule which, by means of its exterior face, is mechanically joined to the interior walls of the cavity (2).
7. A self-propelled projectile according to any one of the preceding claims, characterised in that there are encased in the cavity (2) smoke-generating substances such as smoke-forming pyrotechnic compositions.

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