ADVANTAGES

The significant technological advances made by Space Propulsion Group (SPG) have resulted in the development of high performance hybrid rockets without compromising their simplicity, cost and safety advantages over the solid and liquid propulsion systems. These advanced hybrid rocket systems rely on three key SPG technologies: 1) fast burning paraffin-based fuels which allow for the use of single circular fuel port geometry leading to excellent fuel utilization, 2) unique internal ballistic design which results in stable and efficient combustion without resorting to complex fixes that has been employed in the earlier development programs (such as injection of pyrophoric fluids to vaporize the incoming oxidizer) and 3) advanced carbon composite technology for the fabrication of the motor case which leads to light weight, cost effective propulsion systems. Based on the measured efficiencies, SPG's LOX/paraffin-based hybrid motor would deliver a vacuum Isp performance of 340 seconds (for an nozzle expansion ratio of 70:1), which is approximately 30 seconds higher than modern solid rockets and better than most liquid LOX/RP systems.

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