Patent ID: 6644205
Filing Date: 2003-11-11
Classification: F42B

Abstract:
A warhead configuration for forming a large-diameter hole through a wall of a target, the warhead configuration comprising:(a) a charge of explosive material, said charge having an axis and presenting an annular front surface portion circumscribing said axis, said annular front surface portion being configured so as to exhibit a concave profile as viewed in a cross-section through said charge passing through said axis, at least part of said concave profile being configured such that a vector projecting outward from said part normal to said annular front surface portion diverges from said axis, said concave profile turning through no more than 90Â°, wherein said concave profile corresponds substantially to an arc of a circle, said arc subtending an angle of between 15Â° and 90Â° to a center of curvature of said arc; and (b) a liner adjacent to at least part of said annular front surface portion, wherein said charge and said liner are configured such that, when said charge is detonated, material from said liner is formed into an expanding explosively formed ring.