Patent ID: 7841267

Claim:
A recoilless projectile, comprising: a warhead; a pressure vessel fixed to the warhead, the warhead and pressure vessel having a predetermined weight; a quantity of recoilless launching composition disposed in the pressure vessel, wherein the recoilless launching composition comprising a propellant reacting progressively to generate pressurized propellant gas in the pressure vessel to accelerate the warhead and the pressure vessel, and wherein the recoilless launching composition comprising a reaction mass comprising particles of an inert material, said particles being distributed uniformly in the recoilless launching composition so that the reaction mass is progressively released from the recoilless launching composition at a rate corresponding to the rate of generation of the propellant gas and the particles are entrained in the propellant gas; and a nozzle being attached to the pressure vessel and configured to accelerate the propellant gas oppositely of the warhead and pressure vessel so that the propellant gas accelerates the reaction mass particles, wherein a first combined magnitude of momentum of the propellant gas and the reaction mass is about equal to a second combined magnitude of momentum of the warhead and the pressure vessel.