US-based electric vertical take-off and landing (eVTOL) air taxi company Joby Aviation announced on Thursday that its hydrogen-electric demonstrator air taxi had successfully completed a 523-mile (841.7-km) test flight. The only emission generated by the flight was water (in vapour form). The flight actually took place on June 24, and originated and ended at Marina, in the US State of California. The flight is believed to be the first forward flight of a VTOL aircraft using liquid hydrogen as ...