Advanced Airframe Components for Missile Defense

Next generation interceptor missiles are being designed to intercept incoming ballistic missiles during the boost portion of flight while the booster plume enhances target acquisition and tracking. Controlling the maneuverability of the payload during this critical segment of flight is the attitude control system (ACS) located at the aft end of the third stage shroud. The aft bulkhead of the third stage is positioned to not only provide a lateral connection between the third stage rocket motor and the third stage shroud, but also to be the primary platform for the ACS during third stage operation. The aft bulkhead is a critical component in the interceptor system because it provides the required strength and stiffness to the third stage during tactical operations. As demonstrated in previous manufacturing technology programs, a composite aft bulkhead can successfully provide weight reduction and increased performance compared to a metallic design. The Phase I program will focus on the validation of the joints between the aft bulkhead and the third stage shroud. Furthermore, innovative thermal protection materials for the bulkhead will be utilized to limit the aft bulkhead to characterized operating temperatures.