Startup company Dovetail Electric Aviation is currently undertaking tests on a prototype hydrogen-electric powerplant at its testing facility located in Seville, Spain. The powerplant, boasting a capacity of 600-kW, is an innovative development in the field of aviation technology. Impressively, with the exception of the gaseous hydrogen storage tank, the entire system is ingeniously packaged into a replication of an engine nacelle designed for the Beechcraft King Air aircraft. This unique approach not only showcases creative engineering but also represents a significant stride towards incorporating hydrogen technology into the aviation sector, potentially paving the way for cleaner and more sustainable energy solutions in air transport. The ongoing tests on this hydrogen-electric powerplant underscore Dovetail Electric Aviation's dedication to driving progress in sustainable aviation practices and exploring alternative energy sources for the industry. The project signifies a promising step forward in the pursuit of more environmentally friendly and efficient air transport systems.