Airbus engineers have officially moved the ZEROe hydrogen fuel cell (HFC) program from the laboratory to the flight-line, confirming the technical feasibility of a 100-seat regional aircraft powered entirely by electric-hydrogen propulsion. Following a high-intensity validation phase at the E-Aircraft System House in Munich, the airframer has concluded that the “Iron Pod” architecture, a self-contained hydrogen-electric powertrain, can meet the power density and thermal management requirements for commercial-scale aviation.