In a groundbreaking development for aviation technology, China's Dream Fly, Tongchen Heguang Cryogenic Technology, and JiaQing New Energy collaborated to conduct the test flight of China's first tonne-level hybrid tiltrotor electric vertical take-off and landing (eVTOL) aircraft powered by liquid hydrogen. The successful test flight showcased the aircraft's power system, which includes a combination of a lithium battery, air-cooled fuel cell stack, and a liquid hydrogen storage system. This achievement marks a significant milestone in validating liquid hydrogen as a feasible energy solution for aircraft, with the advanced storage and supply system demonstrating zero evaporation loss and a high hydrogen flow rate. The aircraft's capabilities in operating across various temperatures, achieving high speeds, efficiency, and extended range highlight its versatility for applications like logistics and emergency operations. The article also mentions Joby Aviation's prior success in the field, emphasizing the feasibility and interest in liquid hydrogen power for aircraft. The expertise of the teams behind these innovations, with backgrounds from prestigious universities and specialized knowledge in aviation and hydrogen energy, underscores the strong foundation driving these advancements.