KLM and Transavia have partnered with Dutch sustainable aviation specialist Conscious Aerospace to collaborate on the development of hydrogen fuel cell-based propulsion systems for regional aircraft, specifically focusing on De Havilland Canada Dash 8 planes. Conscious Aerospace, based in Rotterdam, is working on a retrofit program using liquid hydrogen and fuel cell electric propulsion technology. The partnership involves sharing knowledge on operational and technical aspects, optimizing aircraft design for efficiency, refining cost estimates, and identifying practical applications for the CA powertrain-equipped aircraft. Conscious Aerospace's CEO, Erik Geertsema, expressed enthusiasm about the collaboration, citing the value of operator insights in enhancing their propulsion system. KLM's Chief Experience Officer, Barry Ter Voert, highlighted the importance of pioneering new technologies like hydrogen fuel cells to promote sustainability in aviation, emphasizing the significance of incremental progress towards a greener future. This collaboration is part of a broader effort by KLM and Transavia to explore innovative solutions for sustainable aviation. It follows a recent initiative with Elysian Aircraft to accelerate battery-electric aviation development, including the design of the E9X—a battery-electric aircraft intended for passenger transport. These partnerships signify a proactive approach by the aviation industry to adopt cleaner technologies and reduce its environmental impact.