Abstract: An element of a strong bond system between propellants containing mobile stituents such as carboranes, ferrocenes, or nitroglycerin and composite (fiber/resin) cases is provided by coating the insulated (or uninsulated) case with metal that is etched or abraded after the metal is deposited by flame spraying or vapor deposition. The propellant is then cast upon the etched or abraded metal surface which functions as a barrier to migration of the mobile constituents as well as a part of the bond system.

Abstract: Apparatus for providing staged addition of air to the ramburner of an air gmented rocket for enhancing the ignition, combustion, and performance of the rocket. A shaped, strut-mounted, ablative-coated sleeve is mounted coaxially in the ramburner section of the rocket. This sleeve causes the diversion of a part of the inlet air and provides a favorable regime for ignition and combustion of the air augmented propellant. The diverted air is subsequently added to the combustion region through passageways in the sleeve. The shaped combustible ablative material of the sleeve provides additional thrust-producing fuel to the ramburner.