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Arrangement in or relating to a projectile

  • US 4,353,302 A
  • Filed: 05/06/1980
  • Issued: 10/12/1982
  • Est. Priority Date: 07/01/1976
  • Status: Expired due to Term
First Claim
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1. A multi-capability projectile providing substantially splinter, fragmentation and incendiary effect after penetration of a target wall of a predetermined thickness in combination with substantial armor piercing properties, comprising a primary penetration element and a secondary penetration element, said primary penetration element being located toward the rear of the projectile and surrounded over its full length by said secondary penetration element such that said primary penetration element is disposed completely inside said secondary penetration element, the secondary penetration element being substantially longer than said primary penetration element and extending substantially beyond said primary penetration element toward the front of the projectile so as to define a cavity in the secondary penetration element forward of the primary penetration element, the secondary penetration element terminating at its forward end rearward of the front end of the projectile, bursting charge means located in said cavity no farther forward than the front end of the secondary penetration element, means defining a nose at the forward end of the projectile, forward of the secondary penetration element, an incendiary charge located in said nose for igniting upon deformation of the nose upon impacting a target, and hence for igniting said bursting charge, said nose being substantially completely filled with said incendiary charge, and hence being devoid of mechanical fuses or firing pins, said incendiary charge being constructed to burn at at rate which will delay detonation of the bursting charge until the bursting charge and its surrounding portion of the secondary penetration element have essentially passed through said wall, whereby detonation of the bursting charge, and hence splintering and fragmentation of the secondary penetration element occurs past said wall, and retaining means located forward of the rear end of the secondary penetration element for retaining said primary penetration element substantially immobile relative to said secondary penetration element prior to impact of the projectile with a target, said retaining means including a projecting surface which projects inwardly from said secondary penetration element to securely engage the primary penetration element.

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