In September 2024, Turbotech, Safran, and Air Liquide successfully completed ground demonstration testing of a hydrogen-fuelled gas turbine aeroengine that utilizes a regenerative cycle and liquid hydrogen fuel. This achievement followed an initial test phase in January 2024 using gaseous hydrogen fuel. The project aims to replicate all functions of an aircraft propulsion system and achieve energy density comparable to traditional aviation fuels, ensuring operability and certification of the hydrogen propulsion solution. The BeautHyFuel joint research project, initiated in June 2022, involves Turbotech, Elixir Aviation, Safran, Air Liquide, and Daher. This collaboration aims to design and test a hydrogen propulsion system suitable for light aviation, emphasizing the importance of hydrogen technologies in the energy transition. Supported by the French government's post-Covid 19 stimulus programme, the project aligns with efforts to reduce greenhouse gas emissions in air transport and highlights the collaborative approach required for successful low-carbon flying initiatives. The involvement of industry experts and the successful demonstration of a high-tech, zero-emission propulsion solution indicate significant progress in the adoption of hydrogen technology for aviation.