Single cast rod-in-tube solid propellant rocket motor grain with a torispherical dome

摘要

A single cast solid propellant rocket motor grain having a centrally positioned rod portion integrally connected to an outer cylindrical portion at a base portion and comprised of a unitary solid propellant rocket motor grain wherein the central rod portion is approximately twice the thickness of an outer cylindrical portion and having the geometric dimensions and shape to achieve substantially a simultaneous burnout of the propellant burning surfaces after maintaining a burning neutrality from ignition to completion of propellant burning.