Abstract: A pyrogen igniter for small nozzle applications has a high initial output. igh initial output and long duration burning are achieved through utilization of a slow burning igniter main charge in conjunction with a booster pellet. A nozzle plate focuses and directs the output of the igniter as a gas jet while shielding the interior of the igniter from exterior temperature and pressure fluctuations which might otherwise operate to extinguish the igniter. A flush bridgewire/pressed prime igniter configuration and the elimination of loose powder in the igniter facilitates economical production and long shelf-life.

Abstract: An improved rocket motor has a first layer of silicone rubber and a second ayer of an ablative lining placed between the rocket motor casing and the propellant grain. The ablative lining layer contains chopped novoloid fibers 14 microns in diameter and nominally 1 mm in length interspersed throughout a polymeric composition.

Abstract: A propellant formulation comprising a polysulfide binder having the formula -SCH.sub.2 CH.sub.2 OCH.sub.2 OCH.sub.2 CH.sub.2 --S.sub.n wherein n is a positive integer of sufficient magnitude to render the binder an elastomeric solid, ammonium perchlorate, ammonium oxalate and iron oxide. The formulation has properties which render it useful for generating gas to pressurize the fuel systems in air-breathing missiles.

Abstract: Slurried rocket propellants and a spinning rocket motor wherein the propents have viscosities which enable them to form central cores when spun in spinning rocket motors, the motor having a diaphragm-like base plate which assists in transferring forward momentum through the propellant.