Hydrogen-electric HY4 passenger aircraft sets altitude record
Stuttgart-based German aerospace company H2FLY has claimed a new world record for its four-seater HY4, which became the first hydrogen-powered passenger aircraft to reach an altitude above 7,000 ft (2,134 m) on April 13. In addition, the HY4 made the f… Continue reading Hydrogen-electric HY4 passenger aircraft sets altitude record