The Department of Defense, through the Missile Defense Agency (MDA), is seeking innovative solutions for the development of a deployable aerospike for the Terminal High Altitude Area Defense (THAAD) interceptor. The objective is to retrofit the existing interceptor with an aerospike that fits within the current missile canister's envelope, demonstrating feasibility in Phase I and creating a prototype in Phase II, which may include wind tunnel testing. This technology is crucial for enhancing the performance of the THAAD system, which plays a vital role in national defense. The solicitation is set to open on April 23, 2025, with applications due by May 21, 2025, and further details can be found at the provided source link.