초록 ▼

An improved geometric propellant loading configuration for high velocity, large or medium caliber projectile ammunition is disclosed. The propellant system includes several mutually contiguous extrudable stick shapes that in concert result in highly efficient use of propellant load space. The system

An improved geometric propellant loading configuration for high velocity, large or medium caliber projectile ammunition is disclosed. The propellant system includes several mutually contiguous extrudable stick shapes that in concert result in highly efficient use of propellant load space. The system reduces loading, assembling and packing (LAP) labor and overall cost, yet provides a dense pattern to increase propellant load and high perforation to improve burning progressivity over prior stick loads and more reliable and improved ballistic performance.

대표청구항 ▼

[ What is claimed is:] [1.] A propellant load arrangement for a medium, or large, caliber munition cartridge including a finned ballistic projectile including a fin having a plurality of blades comprising:(a) an inner ring comprising a plurality of elongate trapezoidal shaped core stick segments of

[ What is claimed is:] [1.] A propellant load arrangement for a medium, or large, caliber munition cartridge including a finned ballistic projectile including a fin having a plurality of blades comprising:(a) an inner ring comprising a plurality of elongate trapezoidal shaped core stick segments of propellant material having parallel inner and outer bases assembled in an ordered arrangement, the interfaces of the segments facing and being juxtaposed and generally parallel to the longitudinal axis of the projectile, the segments extending between the fins thereof, the outer surfaces of the inner ring segments forming a regular peripheral projectile stick bundle of specific geometric shape having the same number of sides as the number of fins of the projectile;(b) an outer ring comprising plurality of elongate triangular and generally quadrilateral shaped outer sticks of propellant material and having inner and outer surfaces, the outer sticks being assembled in an ordered geometric arrangement generally configured to occupy the available peripheral propellant volume of the cartridge case outside the inner ring, said outer ring forming a stable interior annulus generally shaped to accommodate the core geometric shape and producing an outer geometry generally following the case interior geometry;(c) a central stick in said projectile bundle having a regular geometric shape having a number of sides corresponding to the number of fins in said projectile and adapted to be accommodated beneath the body of said projectile in an opening defined by the inner trapezoid bases in said bundle beneath said fin; and(d) wherein each stick segment of the arrangement, where necessary, further has a shaped central interior or exterior recessed geometry to accommodate the corresponding geometry of any interfering internal cartridge shape or projectile geometry present.