Joby Aviation accomplished a significant milestone by completing a 523-mile test flight of its hydrogen-electric air taxi at its Marina, California facility. The test flight, powered by liquid hydrogen, took place on June 24th, 2024, and resulted in water being the only emission produced. This successful test marked a crucial advancement towards regional flights in the US with zero emissions other than water, showcasing the potential of hydrogen technology in aviation. Joby Aviation's CEO, JoeBen Bevirt, envisions a future where city-to-city travel within the US can be achieved without relying on traditional airports, thanks to the innovative hydrogen-electric eVTOL aircraft. The aircraft, which produces minimal noise and no emissions apart from water, was a converted battery-electric prototype equipped with a liquid hydrogen fuel tank and fuel cell system. The company aims to kickstart commercial operations by 2025, starting with the battery-electric version and transitioning to the hydrogen-powered variant. The aircraft's design includes six electric propulsion units, powering tilting propellers and the flight control system, with liquid hydrogen serving as the primary energy source for the majority of the flight. Utilizing the energy-dense liquid hydrogen and the H2F-175 fuel cell system developed by H2FLY, the aircraft efficiently converted hydrogen into electricity, powering its motors and recharging batteries. Joby Aviation's plans include leveraging the technology and infrastructure developed for the battery-electric aircraft for the hydrogen-electric variant, demonstrating a sustainable approach to air travel. The company aims to use the same landing pads, operations team, and software for both aircraft types, with a goal to commence commercial flights in 2025.