THROTTLED PROPULSION USING AN ELECTRICALLY CONTROLLED EXTINQUISHABLE SOLID PROPELLANT DUAL STAGE MOTOR

ET MATERIALS LLC will utilize their controlled propellant adapted to Army tactical missile requirements. By supplementing the chamber pressure of a solid motor with combustion gases from our smaller controlled motor, in a controlled fashion we cause the chamber pressure of the tactical motor to vary. We thereby control the overall thrust and achieve full extinguishment followed by restart as required. The use of this propellant in a dual stage chamber will provide total thrust control with no moving parts, no dependence on changing the nozzle throat area, allow controlled thrust during the ignition transient phase and the potential for multiple extinguishments and restarts of the propellant. The propellant technology is completely compatible with the use of aerospike nozzles, which will also be tested. These improvements will provide for total thrust management control of the solid rocket motor thereby enhancing its range and targeting accuracy. The propellant also extremely safe in practical use, including: no spark or flame hazard, does not self sustain combustion, no toxic outgasing, insensitive to impact or ignition by blasting cap, and an environmentally "green" system. These low hazard ECESP characteristics will translate directly into significant transportation/shipping and storage cost savings for the ARMY.