Stuttgart, October 14, 2024 – H2FLY the Stuttgart, Germany-based developer of hydrogen-electric powertrain systems for aircraft, today announced the appointment of Ralph Müller as Chief Executive Officer (CEO) effective November 1, 2024. Josef Kallo, co-founder of H2FLY, will transition to the role of Chief Technology Officer (CTO).
Under Kallo’s leadership, H2FLY has achieved significant milestones, including the world’s first liquid hydrogen flight of the HY4 aircraft and the successful development of a high-performance fuel cell system for Joby’s hydrogen-electric eVTOL aircraft. Now, as H2FLY enters a new phase focused on product development and certification, Müller joins the business to lend his extensive experience in leading international organizations, including BorgWarner and MANN+HUMMEL to support the acceleration of the company’s growth.
As CTO, Kallo will continue to drive H2FLY’s sector-leading technological advancements, focusing on early-stage technology development and strategic partnerships. His deep expertise and passion for hydrogen-electric propulsion will be invaluable in shaping the future of sustainable aviation.
“I am delighted to welcome Ralph to the H2FLY team,” said Josef Kallo. “His impressive track record in developing businesses and organizations will be instrumental as we continue our journey towards hydrogen-electric, emission-free flight. I am excited to continue H2FLY’s successful journey together.”
“I am honored to join H2FLY at this pivotal moment in its history,” said Ralph Müller. “H2FLY’s commitment to sustainable aviation aligns perfectly with my own passion for innovation and environmental responsibility. I look forward to leading the incredible team that Dr. Kallo has built and led for the past decade as we bring hydrogen-electric propulsion systems to market and make a significant contribution to a cleaner future.”