Propulsion startup ZeroAvia conducted the first flight of its hydrogen-electric powertrain on a Dornier 228 testbed from Cotswold Airport, England, on Jan. 19.
The aircraft flew for 10 min. with the 600-kW ZA600 fuel-cell propulsion system replacing the 19-seat regional turboprop’s left-side turboprop.
With a weight at takeoff of 5,650 kg (12,450 lb.), the modified 228 is the largest and heaviest aircraft yet to fly with hydrogen-electric propulsion.