(RFI) Advanced Propulsion Acquistion Contract (APAC) Multiple Award Contract (MAC) Indefinite Delivery Indefinite Quantity (IDIQ) Contract

**Update on 12/12/25 - Attachments added to include industry responses and proposal pricing template.** THIS IS A REQUEST FOR INFORMATION (RFI) ONLY. The Advanced Propulsion Acquisition Contract (APAC) MAC Indefinite Delivery Indefinite Quantity (IDIQ) Contract is designed to provide the Air Force Life Cycle Management Center Propulsion Directorate (AFLCMC/LP) with the capacity to: a) rapidly develop technologies for novel propulsion capabilities, b) implement unique solutions and innovative ideas, c) advance new technologies and system concepts that provide evolutionary, revolutionary, and disruptive capabilities for the United States Air Force and strategic partners, and d) enables a rapid response applicable to all areas and lifecycle phases of propulsion development including technology maturation, concept development, concept demonstrations, integration, procurement, production, fielding, operations, and sustainment to quickly meet current and future propulsion system requirements, while maximizing the use of the digital environment.