A recent development in the aviation industry involved the successful testing and validation of a liquid hydrogen-fuelled gas turbine engine for the light aviation market. Air Liquide, Turbotech, and Safran collaborated on this project, conducting tests at Air Liquide’s Grenoble Technologies Campus in France. The ground demonstration testing focused on an aeroengine with an ultra-efficient regenerative cycle and a liquid hydrogen tank. This milestone followed a demonstration test in 2024 as part of the BeautHyFuel project, aiming to explore hydrogen propulsion solutions for light aircraft. Initial engine qualification tests took place at ArianeGroup’s French site in Vernon. The transition to fully decarbonised aircraft propulsion was emphasized, with the project aiming to match the energy density of conventional fuels. The successful integration of a cryogenic liquid storage system by Air Liquide highlighted the potential for zero carbon emissions in flight. Pierre-Alain Lambert of Safran expressed confidence in the project's success, marking a significant advancement in the industry. Supported by the French Civil Aviation Authority, the initiative represents a positive step towards sustainable aviation and reduced carbon footprint.