Researchers at the FAMU-FSU College of Engineering in Florida, USA, have developed a groundbreaking liquid hydrogen storage and delivery system aimed at facilitating zero-emission aviation for electric-powered aircraft. Published in Applied Energy, the study presents an integrated system utilizing hydrogen as both clean fuel and a cooling medium for critical power systems. The design, customized for a 100-passenger hybrid-electric aircraft, draws power from hydrogen fuel cells and turbine-driven superconducting generators. By optimizing system-level parameters, the team achieved a gravimetric index of 0.62, indicating that 62% of the system's total weight is usable hydrogen fuel. The system efficiently manages thermal demands by routing ultra-cold hydrogen through heat exchangers, facilitating heat removal from onboard components. To control hydrogen flow without mechanical pumps, a pump-free system utilizing tank pressure adjustments was implemented. The pressure regulation is linked to the aircraft's power demand, ensuring real-time adjustments for correct hydrogen flow rates during flight phases. Future plans include experimental validation of the prototype system at FSU's Center for Advanced Power Systems as part of NASA's Integrated Zero Emission Aviation program, involving collaboration with various US institutions.