Our feasibility studies show that equipped with GKN’s liquid hydrogen fuel system, fuel cell power system, optimized electrical network, and cryogenic motor drive technology, this 48-seat concept aircraft will have a range of 934 nautical miles—covering approximately 99.9% of turboprop routes and about 90% of the regional jet market*. The aircraft will have zero CO2 emissions and zero NOx emissions, with water being the only byproduct. The water emitted by the aircraft will form contrails, but GKN’s intelligent emission control system will minimize this effect. Compared to equivalent kerosene-powered systems, the low-noise electric fan modules will result in less noise pollution. One of the key challenges facing hydrogen-electric propulsion systems is heat management. Fuel cell-based systems cannot discharge the vast majority of waste heat into the exhaust stream like gas turbines. The technology must be able to dissipate heat effectively or utilize it without adding excessive drag or mass to the aircraft. Improving the intrinsic efficiency of fuel cells, along with integrating GKN’s cryogenic motor drive and electrical network technologies, significantly reduces the overall mass of the system.