Propulsion-hydrogen

Despite the promise of hydrogen, widespread adoption in aviation may be decades away, with technological, safety, and cost challenges all complicating the picture.

Editors discuss the new edition of Inside MRO, including testing barriers for A&P students, Ryanair’s aftermarket plans and development of hydrogen fuel cells.

MIT’s sodium fuel cell; airship testing expands; integrating hydrogen propulsion; and nuclear battery for lunar power.

Hydrogen fuel cell suppliers are engineering powertrains to enable zero-emission aircraft propulsion.

Manufacturers are retreating from their sustainable aviation projects.

Long-endurance Pipistrels; hybrid certification advances; fuel cell propulsion testing; and 3D-printed hydrogen tank.

More than a year after ZeroAvia last flew its Dornier 228 with a prototype hydrogen fuel cell powertrain, the company is not standing still.

The timeline for Clean Aviation relies on 2035 for service entry to enable the replacement of 75% of the fleet with more sustainable aircraft by 2050.

Hinetics’ power-dense superconducting motor eliminates the need for cryogenic fluids.

Clean Aviation executives are striving to firm up plans, even though they have slipped to the right, for both hybrid-electric and hydrogen propulsion.

Superconducting motor runs; Electrifying two-seater; Hybrid hydrogen eVTOL; Hydrogen-powered turnaround.

Renewable hydrogen producer Hy2gen's latest funding round could help it accelerate the deployment of its projects in Canada, Europe, and South America.

Chinese drive/fly eVTOL, logistic resupply autonomy, FAA’s AAM testing center and cryo-compressed hydrogen.

A new fleet of small, hydrogen-powered, long-range drones could soon become a feasible option to operate from remote, austere bases.

GKN Aerospace is rerouting its hydrogen propulsion development road map.

The aim of the tests was to measure the microphysical properties of the contrails resulting from direct hydrogen combustion under real atmospheric conditions.

Jet VTOL UAS; CycloRotor flies; cargo gyroplane; and electrified trainer.

First hydrogen helicopter, flying quiet electric ducted fans, UK funds AAM enablers, and Rotax engine runs on hydrogen.

Readers write about decarbonization efforts in aviation, multipurpose military aircraft, small electric aircraft, and Cold War-era missile defense.

Unither Bioelectronics has accomplished the first flight of a hydrogen-powered helicopter in Canada.

A Rotax piston aeroengine, a popular powerplant for light aircraft, has been converted to run on hydrogen by Austria-based Bosch Aviation Technology.

The installation of a fuel cell system in a flying testbed is being prepared by German startup Hyfly as it progresses development of a hydrogen-electric powertrain for light aircraft.

Airbus has given some early insights into the basics of its future narrowbody. An open-rotor engine clearly remains its favorite option.

Key collaborations have been announced by Australia’s fledgling sustainable aviation industry to advance development of electric- and hydrogen-powered aircraft.

ZeroAvia and Reliable Robotics are studying the integration of hydrogen-electric propulsion onto a Cessna with automation tech to make an uncrewed aircraft.