Bosch Aviation Technology, based in Vienna, has unveiled a groundbreaking concept for a hydrogen aircraft engine, aimed at providing climate-friendly propulsion solutions for aviation. The project involved converting a conventional four-cylinder gasoline engine to operate with hydrogen, utilizing Bosch's hydrogen expertise and components. This innovation project showcases the potential of hydrogen in aircraft propulsion, tapping into renewable energy sources to create a climate-friendly and almost particle-free engine. The modified engine, achieving 115 kilowatts of maximum power, is a result of Bosch's extensive development work on the engine test bench. This approach of modifying established engine designs rather than developing entirely new engines is expected to offer advantages in terms of time, cost, and approval in future customer projects. The project aligns with Bosch's strategic goal of enhancing environmental compatibility and reducing carbon emissions in general aviation. By intensifying cross-segment developments for future drive and propulsion systems, Bosch aims to contribute to a more sustainable and environmentally friendly mobility landscape.