The study published in Applied Energy introduces an innovative framework for liquid hydrogen (LH2) storage, thermal management, and transfer control in hybrid-electric aircraft to revolutionize aviation towards zero-emission flight. Hydrogen's high energy density and clean combustion make it an attractive alternative to conventional kerosene, with the system focusing on addressing challenges in long-haul storage by storing hydrogen as a saturated liquid at cryogenic temperatures. The Integrated Zero Emission Aviation (IZEA) project aims to develop short-range hydrogen-powered aircraft for environmental sustainability. Researchers have designed a hybrid-electric aircraft powered by hydrogen fuel cells, combustion turbines, and high-temperature superconducting (HTS) electric generators, optimizing efficiency and emissions reduction. The aircraft's LH2 storage system comprises two tanks near the centerline, connected to power components through advanced heat exchangers using supercritical helium or water as working fluids for system cooling. Novel pressure regulation strategies and real-time feedback mechanisms ensure stable operation during various flight phases. The system's optimization emphasizes the importance of system-level integration, achieving maximum efficiency with a gravimetric index of 0.62. LH2 fuel constitutes a significant portion of the total system mass, showcasing the system's effectiveness in balancing performance and weight considerations. The research demonstrates scalability for long-range operations and potential applications in maritime and heavy-duty transport sectors. The integrated LH2 storage and thermal management system paves the way for zero-emission aviation, offering a sustainable solution without compromising performance or safety. Modular heat exchanger loops and dedicated working fluids enable independent thermal regulation of components, addressing compatibility and safety concerns. This advancement signifies a significant leap towards a greener aerospace industry with broader implications for transportation sectors beyond aviation.