CAVITATING CORE Russian patent published in 2008 - IPC F42B10/42 

FIELD: ammunition of launching weapon and firearm.

SUBSTANCE: the cavitation core has a nose cone conjugated with the secant nose surface in the cavitation edge, central and aft parts with the planning bottom. The maximum diameter of the circumference describing the core cross-section determines the core caliber the rounding contour of the cross-sections from the cavitation edge to the core caliber in the plane of the longitudinal axial section of the core is limited by dependence: D_x=d x [1+(L_x/d) x (2 x sinφ/π)^1/N]^N where D_x - the current diameter of the core rounding contour, mm; d - the diameter of the cavitation edge, mm; L_x - the current distance from the cavitation edge to the core caliber, mm; φ=60°... 270° - the angle of spread of the tangent lines to the secant nose surface in the points of its conjugation with the cavitation edge measured on the side of the nose cone; N=(2π/φ)^0.4 ... (2π/φ)^0.2 - the coefficient of the core volume, the core caliber equals the current diameter D_x of the rounding contour.

EFFECT: enhanced effective range of affection of submarine targets at aerial shooting into water and at shooting in the submerged position with the use of standard arbalest, harpoon guns, sporting weapon and small arms.

13 cl, 7 dwg