Highly Vectorable, Multi-Pulse Rocket Motor Nozzle to Enhance Maneuverability of Advanced Interceptors

Emerging threats have the potential of operating in trajectories where our ballistic missile defense systems are ineffective. Effective defenses must be more maneuverable than the emerging threats but also must be affordable. Maturation of innovative materials, processes and technologies is key to the demonstration and fielding of defense systems with required performance capabilities. Performance improvements can be achieved with stable, non-eroding nozzle throats of aluminized solid rocket motors for axial propulsion and axial divert and attitude control systems. The SBIR technology is a refractory metal-lined nozzle throat that protects a convergent/divergent lightweight structure from erosion. The proposed concept offers the following unique advantages: -Reduced volume and part count, which enables flexibility with nozzle design and packaging. This is particularly valuable for highly vectorable thrust vector control systems. -A “drop-in” concept that provides an increased non-eroding convergent/divergent flow path with reduced risk. -Scalable from small to large diameter nozzles. A Phase II will mature the concept by optimizing designs to increase performance margins; assess material compatibility concerns; conduct tests of full-scale components in relevant environments; and increase manufacturing throughput for reduced production costs. Approved for Public Release | 19-MDA-9932 (21 Feb 19)