G Warwick, Starting small: can hydrogen propulsion grow out of its initial niche?, Aviation Week Network, 29 August 2024

In the hydrogen-electric based aviation world, initial developments include Universal Hydrogen’s ATR 72 aircraft. Cranfield’s Britten-Norman Islander, ZeroAvia’s Cessna Caravan, and the De Havilland Canada Twin Otter. A large regional turboprop of 500 nm range could require over 2 MW of power with 600 kg of liquid hydrogen, whereas a regional jet would need 10 MW of power and 1000 kg of LH2. A narrow body aircraft of 2400 nm range would require nearly 15 MW per engine, and just over 4 tonnes of LH2. H2Gear is also researching in this area.