‘…An aircraft that uses liquid hydrogen has the potential to transform the way we travel between cities, regions and countries, delivering true zero-emissions flight on medium- and long-haul flights,” Kallo said.

H2Fly has dedicated the last 10 years to researching, testing and refining its HY4 aircraft, which first took flight in 2016. The company believes liquid hydrogen could significantly increase the range of hydrogen-powered aircraft.

For eVTOL companies like Joby Aviation, liquid hydrogen could offer an alternative clean energy source to its current battery technology, opening up new markets for regional air mobility…”