Standard Missile 3 BLK IIA and IB TDACS
The SM-3 Block IB is being developed as part of the Missile Defense Agency's (MDA) Aegis Ballistic Missile Defense System Phased Adaptive Approach. The missiles will be deployed on Aegis cruisers and destroyers, and also on land sites as part of the Aegis Ashore program to defend against short-to-intermediate range ballistic missile threats in the mid-course phase of flight
Aerojet Rocketdyne’s MK 72 booster and MK 104 dual-thrust rocket motor provided the first and second stage propulsion while Aerojet Rocketdyne’s Throttling Divert and Attitude Control System (TDACS) handles maneuvering the SM-3 Kinetic Warhead into the target for the final hit-to-kill impact.
The TDACS was incorporated into the SM-3 Block IB missile by Raytheon, along with other kinetic warhead improvements, to increase the SM-3 Block IB missile’s capability against current and emerging target threat sets. Aerojet Rocketdyne incorporated its throttling solid rocket technology advancements into the TDACS design to provide increased mission flexibility to the warfighter while maintaining the safety features of solid propellant.