Explosive and incendiary projectile

• US 4,662,280 A
• Filed: 04/01/1985
• Issued: 05/05/1987
• Est. Priority Date: 01/18/1983
• Status: Expired due to Fees

• Current Assignee: Rheinmetall GmbH (Rheinmetall AG)
• Original Assignee: Rheinmetall GmbH (Rheinmetall AG)
• Inventors: Becker, Wilfried, Bisping, Bernhard
• Primary Examiner(s): BROWN, DAVID
• Application Number:
  US06/718,084
• Time in Patent Office: 764 Days
• Field of Search: 102/517-519, 102/364
• US Class Current: 102/364
• CPC Class Codes: F42B 12/204 for attacking structures, e.g. specific buildings or fortifications, ships or vehicles
• CPC Class Codes: F42B 12/76 of the casing
• CPC Class Codes: F42B 14/02 Driving bands; Rotating bands F42B14/04 takes precedence
• CPC Class Codes: F42B 30/08 Ordnance projectiles or missiles, e.g. shells

Abstract

An improved explosive and incendiary full caliber projectile having a high splinter effect. The projectile produces a reliable incendiary effect at impact by releasing splinters from the casing. It is of simple construction and the casing and splinters have a high penetration capability in particular when the projectile is less than 40 mm in caliber.

At least a preponderantly longitudinal portion of the casing is made of a homogeneous substance consisting of a heavy metal alloy having a density in excess of 17 g/cm³. By using a sintered high tungsten content casing a relatively larger volume of an explosive charge can be used which enhances the penetration capability and splinter swarm producing effect of the projectile at impact.

Claims

1. An improved explosive and incendiary full caliber projectile having a thin-walled casing which encompasses in hood-like fashion an explosive charge and which has a rearwardly facing open end which is operatively coupled to a rear projectile portion, which closes said open end, the improvement comprising said casing having a nose portion and a cylindrically shaped portion extending rearwardly therefrom over an axial length a, the wall thickness of said cylindrical portion being 5% to 15% of the caliber diameter of said projectile and the material forming said casing having a specific density larger than 17 g/cm³ and consisting of a homogeneous sintered heavy metal alloy having a tungsten content of 85% to 98%, whereby a sufficiently strong casing is formed so that at target impact the projectile casing disintegrates into a swarm of splinters as a result of the relatively large explosive charge which accelerate radially with high velocity and penetration capability which produce a leading large splinter swarm and a trailing small splinter swarm causing an incendiary effect.

2. The improved explosive and incendiary projectile as set forth in claim 1, wherein said homogeneous substance of the sintered heavy metal alloy forming said longitudinal extent of said casing includes additions of metal selected from the group of metals iron, cobalt and nickel.

3. The improved explosive and incendiary projectile as set forth in claim 2, includng the rear projectile portion connected to said open rear end wherein said longitudinal extent a of said casing includes a partial front portion b in which the explosive charge is disposed and a partial rear portion c which is connected to said rear projectile portion.

4. The improved explosive and incendiary projectile as set forth in claim 3, wherein said front portion of said casing is ogival in shape and extends rearwardly up to said longitudinal extent of said casing, said longitudinal extent of said casing being cylindrically shaped, the rear end of said longitudinal extent of said casing being threadably connected to said rear projectile portion and the front end of said longitudinal extent of said casing being threadably connected to said front portion of said casing.

5. The improved explosive and incendiary projectile as set forth in claim 3, wherein said longitudinal extent a of said casing completely surrounds said rear projectile portion, and a guide ring is non-detachably mounted on said casing so as to confront said rear projectile portion.

6. The improved explosive and incendiary projectile as set forth in claim 5, wherein said projectile casing includes a solid nose portion having a conical shape which is disposed in front of said longitudinal extent of said casing and extends rearwardly up to the explosive charge;

said nose portion consisting of a homogeneous substance of a sintered heavy metal alloy having a density greater than 17 g/cm³.