The Department of Defense, through DARPA, is seeking proposals for the development and flight testing of an Inertially Scaled Aircraft (ISaAc), specifically a small unmanned air vehicle (UAV) weighing between 55 to 300 lbs. The objective is to create a UAV that accurately mimics the dynamics of a tactically relevant target aircraft, enabling early identification of flight control challenges and reducing costs and risks associated with traditional aircraft development. This initiative is crucial for enhancing flight control design and software development, allowing for significant advancements in both military and commercial aircraft programs. Interested parties must submit their Direct to Phase II proposals by June 25, 2025, with further details available at the provided source link.