Statically Operated Ramjet

The need for greater payload and range for tactical missiles is unsatisfied by current propulsion concepts. Greater payload and range is necessary for increased operational adaptability of Warfighters. The Grossi Statically-Operating Ejector Ramjet (SOERJ) engine combines the high speed performance of a ramjet and low speed, or static performance of a solid rocket motor which results in greater payload and range. Preliminary proof of feasibility is proposed by conducting basic laboratory techniques with an existing sub-scale prototype engine, and by simulating a SOERJ missile through the development of high-fidelity methods and tools. Results expected are a specific impulse greater than 250 seconds, and a thrust-to-weight of greater than 4g at launch with increasing performance to a flight speed of 2.5 Mach. The research will be conducted by the original SOERJ scientist with nine years of SOERJ research experience. Proof of feasibility is expected to generate investment for full-scale demonstrators by acquisition programs.