Propulsion-hydrogen

A central challenge to developing hydrogen-fueled aircraft is the space required to store the fuel.

Research ramps up to create technology foundation for new, cleaner aircraft.

The converted aircraft lifted off at 8:41 a.m. Pacific time and landed back after a 15-min. flight.

Loganair CEO Jonathan Hinkles believes hydrogen propulsion is likely to mature quicker than electric aviation.

The EU research program has called for additional proposals for projects to mature technologies for hydrogen-powered aircraft.

Readers write about hydrogen propulsion, aerospace business, Artemis II mission, a Mars shuttle, Airbus autonomy tests and the UK and the F-35 program.

Regional rotorcraft; AAM flight planning; Ultra-low-NOx propulsion; and LH2 for UAVs.

Readers write about portable power stations, objectivity in space coverage, the F-35 and our B-21 and B-2 rollout covers.

Ambitious large scale airframe modification programs will convert two A380s into flying technology testbeds for a hydrogen fuel cell, hydrogen combustion and an