The Department of Defense, specifically the United States Air Force (USAF), is seeking proposals for the Highly Adaptative Propulsion Experiment (HAP-E) under the Small Business Innovation Research (SBIR) program. The objective is to investigate and develop modern high-density propulsion systems, such as Solid Rocket Motors, that can be designed and manufactured more efficiently and cost-effectively, addressing supply chain fragility while ensuring reliability for air assets. This initiative is crucial for enhancing the USAF's Long-Range Strike Capacity in the context of Great Power Competition, aiming to reshape the munitions propulsion industrial base to focus on cost and scalability. Proposals are due by June 25, 2025, and interested parties can find more information at the provided source link: https://www.sbir.gov/topics/12093.