United States, Oct. 14 -- Lockheed Martin and General Dynamics announced significant progress in the joint development of solid rocket motor (SRM) production. The two teams officially broke ground in April on critical infrastructure to support this effort and have been working diligently to meet development milestones and advance the U.S. defense industrial base.Since breaking ground, the collaboration has focused on building supply chain resilience and bringing advanced propulsion capabilities to market. The program recently achieved several key milestones, including the progression of major subcomponent design and testing, a critical design review of all SRM elements, and the execution of a full scale inert SRM build validating critical t...