SAF-compatible Hybrid-Electric propulsion for a fixed-wind aircraft

Rune Aero Inc. is developing a remotely piloted unmanned aircraft that incorporates cutting-edge hybrid-electric technologies that will help the U.S. to ultimately achieve net-zero carbon emissions from aviation by 2050. In this SBIR Phase I proposal and follow-on Phase II proposal, Rune Aero Inc. will partner with Auburn University to develop a hybrid-electric systems intended for cargo delivery missions that is remotely piloted. The purpose of the Phase I project, is to conduct preliminary assessments and formulate detailed plans for the Phase II proposal. Auburn University will support the prime contractor in both these objectives. In Phase II, the team will conduct more extensive analyses, build a subscale prototype, and flight test it. The objectives of Phase I include multi-disciplinary design optimization, stability and control analysis, flight and propulsion system control law development, and the design and simulation of subscale prototypes. These efforts aim to maximize the performance potential of the aircraft design and ensure its operational success. Phase I of the project involves several tasks, including creating a geometry model of the aircraft, incorporating weight estimation relationships, aerodynamic data, and engine performance data that will serve as the baseline for further analysis. Utilizing the baseline model, a Multi-disciplinary Design Analysis and Optimization MDAO will be conducted to optimize design variables; followed by high-fidelity CFD analysis to optimize the distributed electric propulsion system, aiming to reduce fuel burn and emissions by 75%. Detailed stability and control characteristics will be assessed, including dynamic stability, controllability, and failure scenarios, using MADCASP, and flight and propulsion control system architecture will be implemented. Lastly, a subscale prototypes will be designed and simulated using PEACE and MADCASP, providing insights into feasibility and performance.