French startup Beyond Aero is making strides in the development of a full-scale hydrogen-electric powertrain for its upcoming business jet named One. The company has already conducted successful flight tests of a subscale version of the hydrogen fuel cell powertrain on a G1 Aviation ultralight aircraft. The next milestone for Beyond Aero is to conduct full-scale powertrain tests in 2025. This move demonstrates the company's dedication to pushing the boundaries of hydrogen technology in aviation. By focusing on hydrogen-electric propulsion, Beyond Aero is contributing to the industry's collective effort to adopt more sustainable and eco-friendly solutions for air travel. The development of this hydrogen powertrain represents a step forward in the advancement of advanced air mobility and highlights the potential for hydrogen as a key player in the future of aviation.