Joby Aviation recently achieved a significant milestone in aviation by conducting a successful trial of a hydrogen-electric air taxi demonstrator in California, US. The aircraft completed a 523-mile flight above Marina, showcasing the first forward flight of a vertical take-off and landing aircraft powered by liquid hydrogen. Utilizing a hydrogen fuel cell system developed by Joby's Germany subsidiary H2FLY, the aircraft landed with 10% of its hydrogen capacity remaining after the demonstration. CEO JoeBen Bevirt expressed optimism about the technology's potential to transform regional travel and reduce emissions significantly. Joby's progress with certifying the battery-electric version of the aircraft also paves the way for hydrogen-electric flight. The company plans to start commercial operations of its battery-electric air taxi by 2025, while the hydrogen-powered aircraft continues its development phase. The article also highlights H2FLY's achievements in hydrogen-powered flight, with the company's HY4 prototype aircraft successfully using liquid hydrogen in test flights. H2FLY has been at the forefront of hydrogen-powered aviation, setting world records and demonstrating the feasibility of hydrogen electric powertrains. The commitment to advancing hydrogen technology in aviation is evident, with a focus on innovation and sustainability in air transportation. The overall sentiment of the article is positive, emphasizing the progress and potential of hydrogen-electric flight in redefining the future of air travel.