Projectile arrangement

US5063855A · kind A · utility

Assignee

• Rheinmetall GmbH · DE

Inventors

• Rainer Diel · Düsseldorf, DE
• Achim Sippel · Ratingen, DE
• Jurgen Meyer · Cologne, DE
• Heinz-Josef Kruse · Ratingen, DE

Key dates

• Filing date: Oct 16, 1990
• Grant date: Nov 12, 1991
• Expiry date: Oct 16, 2010

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F42B14/062
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A projectile arrangement including a subcaliber projectile body and a segmented, discardable propelling cage sabot provided with a common form locking zone for the transmission of the acceleration forces. To reduce the notch effect on the projectile body, and thus the danger of breakage, due to the conventional thread grooves in the form locking zone, particularly in long, slender penetrators made of a breakage susceptible tungsten heavy metal, a novel form locking connection for the inner form locking region between the propelling cage and the projectile body is provided. This novel form locking connection is characterized in that in the region of the form locking zone beneath the exterior gas pressure receiving surface of the sabot, only the exterior surface of the projectile body is provided with preferably annular microgrooves and the surrounding inner surface of the sabot is smooth. The microgrooves are produced preferably by non-cutting shaping such as, for example, rolling or pressing in, and are configured as arcuate recesses having a relatively flat groove bottom and pointed lands between adjacent recesses. When the projectile arrangement is fired, the microgrooves of the …