DE102008049146A1 - Sabot projectile - Google Patents

Abstract

The invention relates to a sabot projectile (1) comprising a subcaliber penetrator (2) and a sabot (3) which has a drive element (4) acting upon the penetrator (2) on the rear side, a segmented and substantially cylindrical stabilizer cage (5) which is contiguous to the drive element (4) on the front end, and a segmented substantially disk-shaped metal stabilizer element (6) which extends radially inwards in the front portion of the stabilizer cage (5) and holds the penetrator (2). The disk-shaped stabilizer element (6) is designed in such a manner that it has a minor contour (11) which slightly arches in the direction of trajectory of the projectile (1), the material and the wall thickness of the stabilizer element (6) being chosen such that the arched portion of the stabilizer element (6) is pushed slightly back when the sabot projectile (1) is fired, thereby causing the stabilizer element (6) to rest against the inner wall of the barrel from which the projectile (1) is fired with its outer edge section (9), and/or against the outer surface of the penetrator (2) with its inner edge section (10) facing the penetrator (2).

Description

The The invention relates to a sabot projectile with a subcaliber Penetrator and a sabot, the one on the back the penetrator acting driving element, a front on the blowing element subsequent, segmented and substantially cylindrical guide cage and a segmented, located in the front area of the guide cage radially inwardly extending and holding the penetrator Includes disc-shaped guide element made of metal.

Such a sabot projectile is for example from the DE 43 30 417 C2 known. It comprises a two-segment, substantially hollow cylindrical guide cage made of aluminum or plastic, which is integrally connected to the disc-shaped guide member.

at a guide cage made of aluminum or another metal with integrated guide element is the dead load of the sabot projectile relatively high. If, however, the Guide cage and the guide element Both are made of plastic, it has been shown in practice that the front guide area is too soft, so when the Pipe pass of the sabot projectile radial deflections The penetrator can cause destruction the front guide area of the sabot to lead.

It has therefore already been proposed, the guide cage made of a fiber-reinforced plastic and the disc-shaped Guide element made of a metal, preferably an aluminum alloy, manufacture and then both parts positive and / or non-positive to connect with each other. Because of the high e-module of one made of metal guide element this is better able to absorb shear forces as a corresponding, made of fiber-reinforced plastic existing guide element. The relatively lightweight, made of fiber-reinforced plastic Guide cage then only needs the metal existing guide element in the axial acceleration of Sower cage bullet in a corresponding weapon barrel to hold in axial position.

Indeed has been shown that due to the constructive base game between the inner wall of the gun barrel, from which the sabot floor to be fired, and the outer circumference the disc-shaped guide element is the latter due to the high axial acceleration of the projectile in the weapon barrel in not supported by the wall of the barrel Areas can bend and break.

The unpublished DE 10 2008 029 395.4 refers to the use of light metal (for example an aluminum or magnesium alloy) for such guide cages, which is particularly inexpensive to produce, if it is produced by extrusion profile part, which subsequently reworked (the profile is, for example, turned off) and in the axial direction segmented or shared.

Of the Invention is based on the object, a cost-effective and weight-optimized sabot bullet of the beginning specify type mentioned, in which a breaking of the disc-shaped guide element when shooting the bullet is avoided, so that an accurate radial guidance of the penetrator is ensured.

These The object is achieved by the features of claim 1. Further, particularly advantageous Embodiments of the invention disclose the subclaims.

The Invention is based essentially on the idea of the disc-shaped Guide element in such a way that it has a low, in the direction of flight of the projectile slightly curved contour having, wherein the material and the wall thickness of the guide element are chosen such that the arched area of the guide element when firing the sabot projectile something is pushed back and become the guiding element thereby with its outer edge area to the Inner wall of the gun barrel and / or with his the penetrator facing inner edge area to the outer surface of the penetrator applies.

When It has proven advantageous if the disk-shaped Guide element as a curvature in the direction of flight of the projectile possesses conical tapering contour. there This curvature needs only in an annular Be present section around the penetrator, wherein the outer diameter D of this annular section, for example, 50% of the projectile caliber Do may amount.

at a light alloy driving element with conical tapering contour, the maximum cone angle can be smaller be as 10 ° and was in a practical embodiment preferably 5 °.

Further Details and advantages of the invention will become apparent from the following Based on a figure illustrated embodiment.

The figure shows the longitudinal section through an inventive sabot projectile 1 that has a subcaliber penetrator 2 with bowling and a sabot 3 includes.

The sabot 3 essentially consists of a tail on the penetrator 2 acting multi-part propellant element 4 made of an aluminum alloy, one on the front side of the drive element 4 subsequent cylindrical guide cage 5 and one at the front of the guide cage 5 arranged, radially inwardly extending and the penetrator 2 holding disc-shaped guide element 6 together.

The guide cage 5 consists of two half-shell-shaped segments 7 preferably made of extruded aluminum profile.

Also the disc-shaped guide element 6 is made up of two half discs 8th together, each made of metal. Again, in the figure, only a half-disk 8th while the second half-disk is in front of the image plane facing the viewer.

According to the invention, the disk-shaped guide element 6 in his to the penetrator 2 adjoining middle area one in the direction of flight of the projectile 1 conically tapering contour 11 on. Here are the material and the dimensions of the guide element 6 chosen such that the guide element 6 when shooting the sabot bullet 1 something is pushed back and by the consequent increase in diameter of the guide element 6 its outer edge area 9 to the inner wall of the gun barrel (not shown), from which the projectile is fired, applies.

The same applies to the penetrator 2 facing inner edge area 10 of the guide element 6 , which positively and non-positively to the outer surface of the penetrator 2 applies, so that the design tolerances (joining game between disk-shaped guide element 6 and penetrator 2 and interface game between gun barrel and guide element 6 ) and optimum radial guidance of the sabot projectile 1 is guaranteed in the appropriate gun barrel.

By supporting the two half discs 8th of the guide element 6 at the penetrator 2 becomes a bending of the disc-shaped guide element 6 usually prevented beyond its vertical position.

In a practical embodiment of a sabot projectile according to the invention with a projectile caliber Do of 120 mm was the diameter D of the circular section, within which in the direction of flight of the penetrator 2 tapered contour was about 50% of the projectile caliber Do. The cone angle was 6 the tapered contour about 5 ° and the wall thickness of the consisting of an aluminum alloy guide element 4 mm.

The Of course, the invention is not the above described embodiment limited. So For example, the guide element instead of a Aluminum alloy also consist of another metal. Furthermore does not necessarily have the curvature of the guide element be conical, but for example, the shape have a spherical cap.

Further can the guide cage and the guide element also consist of more than two segments, although the Dividing lines of the guide cage and the guide element should connect to each other axially, to a faultless Throw off the segments to ensure once the sabot floor has left the corresponding weapon barrel.

1

Sabot projectile, bullet

2

penetrator

3

sabot

4

driving element

5

guide cage

6

guide element

7

segments

8th

half-disk

9

outer border area

10

inner border area

11

buckle, cone-shaped tapered contour

D

diameter the area of the guide element, in which the curvature is

do

bullet caliber

δ

cone angle

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 4330417 C2 [0002]
• - DE 102008029395 [0006]

Claims (4)

Sabertop missile with a subcaliber penetrator ( 2 ) and a sabot ( 3 ), the one on the rear side of the penetrator ( 2 ) acting driving element ( 4 ), a front of the drive element ( 4 ), segmented and substantially cylindrical guide cage ( 5 ) and a segmented, in the front region of the guide cage ( 5 ) radially inwardly extending and the penetrator ( 2 ) holding disc-shaped guide element ( 6 ) of metal, characterized in that the disc-shaped guide element ( 6 ) one in the direction of flight of the projectile ( 1 ) extending vault ( 11 ), wherein the material and the dimensions of the guide element ( 6 ) are selected such that the guide element ( 6 ) when firing the sabot projectile ( 1 ) is pushed back slightly and with its outer edge area ( 9 ) to the inner wall of the weapon barrel from which the sabot projectile is fired, and / or with its inner edge portion (FIG. 10 ) to the outer surface of the penetrator ( 2 ) applies. Sabotage missile according to claim 1, characterized in that the disc-shaped guide element ( 6 ) one in the direction of flight of the projectile ( 1 ) conically tapering contour ( 11 ) having. Sabotage missile according to claim 2, characterized in that the disc-shaped guide element only in a circular section around the penetrator around in the direction of flight of the penetrator ( 2 ) tapered contour ( 11 ), wherein the diameter D of this annular portion is less than or equal to 50% of the projectile caliber Do. Sabotage bullet according to claim 3, characterized in that the driving element consists of a light metal and the maximum cone angle ( 6 ) of the conically tapering contour ( 11 ) is less than 10 °, preferably 5 °.