Aktiebolaget Bofors

Ab Bofors

Kjell Mattsson

Torsten Wik

Bertil Arvidsson

Leif Brattstrom

Bo Gustavsson

Christer Lagerstam

Leif Brattstr/o/ M

Stig Hallstr/o/ M

Kurt Pettersson

Ammunition projectile to be used for training purposes

A hollow charge for causing a primary effect by making a hole in a target (1) and a secondary effect by charge material emanating into the target via this hole (1a) and causing a sudden pressure rise, fire, fragmentation, poison or a corresponding damaging effect within the target. The charge comprises a cavity (9) expanding in the burst direction and covered with a metal layer (10). At the initiation of the charge a forward directed penetrating jet (2) having a high velocity (v.sub.1, v.sub.2) is generated and also a slug (3) with a comparatively low velocity (v.sub.3). The charge further comprises an additional body (11) in front of or integrated with the metal layer for generating a separate jet part (4) at the initiation of the charge, which part (4) follows behind the penetrating jet (2) and is included in the charge material causing the secondary effect. The additional body is arranged in such a way that the separate jet part (4) is in front of and separated from the slug and has a velocity which is well above the slug velocity (v.sub.3).

Hollow charge

This invention relates to a hollow charge for a missile, projectile, shell or the like. The invention is particularly intended to be used on a missile which is arranged to pass a target and the hollow charge initiated when the missile is over, at the side of or under the target which means that the hollow charge is inclined with respect to the longitudinal axis (13) of the missile. The hollow charge comprises an inner, jet-forming, trumpet-shaped cone member (3) and an outer casing (2) having a substantially straight cylindrical part (8) connected to a conical tapered part (9, 10) to give the hollow charge jet an extremely high front tip velocity as well as a low velocity gradient.

Growing community of inventors

San Leandro, CA, United States of America

Kjell Mattsson