Safran, Air Liquide, and Turbotech in France have successfully completed a ground demonstration of a hydrogen-fueled gas turbine aeroengine, marking a significant milestone in the transition to decarbonized aircraft propulsion. The engine operates on a regenerative cycle and utilizes liquid hydrogen stored in a cryogenic tank. This successful test follows an initial phase in January 2024 using gaseous hydrogen for characterization, with the second phase integrating a cryogenic liquid hydrogen storage system to replicate an aircraft propulsion system. Damien Fauvet, CEO of Turbotech, expressed the importance of achieving energy density comparable to traditional aviation fuels while addressing retrofitting, operability, and certification challenges for cryogenic hydrogen propulsion. The collaboration between Safran and Air Liquide, leveraging the latter's cryogenic storage system, demonstrates the feasibility of a high-tech propulsion solution with zero carbon emissions. Partnerships play a crucial role in advancing hydrogen technology, as highlighted by Xavier Traversac, Air Liquide’s Vice President of Advanced Technologies, emphasizing the necessity of collaboration for decarbonization. The project is part of the BeautHyFuel joint research initiative, involving Turbotech, Safran, Air Liquide, Elixir Aviation, and Daher, with a focus on designing and testing hydrogen propulsion systems for light aircraft and developing certification methodologies for retrofit applications. This successful demonstration signifies a step forward in the energy transition towards low-carbon flying and underscores the commitment of key industry players in driving innovation for sustainable aviation.