 ZeroAvia flew the worlds largest hydrogen-electric aircraft today in a step forward for sustainable aviation. The 19-seat, twin-engine Dornier 228 plane, fitted with a prototype hydrogen-electric powertrain, completed a 10-minute flight from Cotswold Airport in the UK. It was part of the HyFlyer II project, a government-funded RD program working to make small passenger planes ... Worlds largest hydrogen-electric aircraft completes 10-minute... 