The ENABLEH2 project, funded by the EU, has left a lasting impact on the aviation industry by fostering the development of critical technologies for hydrogen-fuelled air travel. Despite facing delays due to the pandemic, the project concluded in January 2023 and quickly leveraged its technological achievements to drive advancements in hydrogen-based aviation. Notable contributions include the creation of a new type of compact heat exchanger, which efficiently cools engine parts using hydrogen's low storage temperature and preheats fuel with waste heat, promising improved fuel burn and reduced emissions. Swedish partner Chalmers University's research indicates the potential for a significant portion of Nordic flights to be hydrogen-powered by 2045. Furthermore, advancements in low-NOx hydrogen micromix combustion and liquid hydrogen tank design from ENABLEH2 have paved the way for zero-carbon emission aviation initiatives like FlyZero, aiming for implementation by 2030. The collaboration between research institutions has led to the establishment of competence centers focusing on accelerating the development of hydrogen integration across aviation, maritime, and road transport. These synergistic efforts have not only sparked interest in hydrogen-fuelled aviation but have also attracted additional funding for related projects, ensuring the sustainability and growth of hydrogen technologies in the aviation sector. The ENABLEH2 project's success is evident through its tangible contributions towards achieving net-zero hydrogen-fuelled aviation, driving innovation and sustainability in the industry.