The Department of Defense (DOD) is seeking proposals for a Small Business Innovation Research (SBIR) program focused on the topic of "Secured Cyber-Physical System for Distributed Additive Manufacturing of Metallic Aerospace Structural Parts". The objective of this research is to develop a cyber-secured, digital twin-based system for distributed additive manufacturing (AM) to ensure trusted/authenticated, intellectual property (IP)-protected, high-quality, and reliable/repeatable metallic structural parts. The research aims to address three main obstacles in implementing AM technology: data integrity and IP protection, cybersecurity, and quality control and assurance. The proposed solution should be compatible with existing N-PLM systems and incorporate blockchain technology for secure data transfer and IP protection. The research will be conducted in two phases, with Phase I focusing on developing the system architecture and concept of operations, and Phase II expanding the design and completing the application business model. The final phase, Phase III, will involve the application of the developed system to plan and manage end-to-end AM management activity. The potential impacts of this research include improved readiness and aircraft availability for the Navy fleet, decentralized manufacturing, and enhanced cybersecurity for AM processes. The solicitation is open until June 12, 2024. For more information, visit the SBIR topic link or the solicitation agency website.