Abstract: A rocket assisted projectile has a solid propellant charge within the projectile casing extending substantially throughout the length of the casing and has an inhibited centerport therein which axially extends substantially throughout the length of the propellant charge, and the solid propellant charge comprises a cast single explosive sensitized charge bonded to the casing and bonded to the inhibitor material of the inhibited centerport during cure of the cast charge with said charge having bifunctional characteristics to produce rocket thrust for the projectile in flight and high explosive blast of the projectile at target.

Abstract: A two layer composite for case bonding double base propellants. The layer xt to the case and internal components comprises a neoprene or vinyl chloride-vinyl acetate copolymer formulation which includes triphenylmethane triisocyanate and the propellant adhesive layer comprises polyvinyl formal cross-linked with titanium acetylacetonate or 2,4-tolylene diisocyanate.