
Beyond Aero bench-tests full-scale hydrogen-electric powertrain, reaches TRL6 for BYA-1 business jet
French startup Beyond Aero has bench-tested a full-scale hydrogen-electric powertrain for its BYA-1 executive aircraft, advancing the system to Technology Readiness Level 6 after ground trials. The prototype supports a four-passenger mission profile with an advertised range of about 1,481 km.