Liquid hydrogen, cryogenic cooling and electric propulsion are coming together in European and UK research programs.

Hydrogen propulsion startup ZeroAvia has secured two Dornier 228s for use as test aircraft for development of its 600-kW fuel-cell propulsion system for 19-passenger airliners.

The startup's modified Cessna 337H Skymaster prototype will soon start touring between midsize regional airports across France.

Fuel cells for aircraft power; Blade UAM expands; Volocopter Paris flight; Vertiport partnerships; and Japan SAF flights.

Why the WTO pact is essential to blunting the China challenge.

After more than 40 years is the open rotor finally ready for prime time? Here’s a look at the steps on its development path.

A new delay and a design problem raise questions about Boeing’s digital approach to T-7A design.

GE/Safran demonstrator aims to make open rotor a reality for new single aisles after 40 years of research, tests and abandoned attempts.