Boom says the Overture will be capable of takeoff at derated thrust settings, helping reduce noise.

The engine-maker says it has performed the world’s first test in simulated altitude conditions of a megawatt-class and multi-kilovolt hybrid-electric propulsion system.

Traditional engine-makers appear to be closing in on the sweet spot between conventional powerplants and batteries as the development of hybrid…

Study finds electric aircraft’s effect on decarbonizing aviation could be greater than their direct contribution to reducing emissions.

More than 2,000 hours of development and certification testing have been completed so far.

The Raytheon companies are developing a hybrid-electric technology demonstrator program.

Liquid hydrogen ground tests will begin later this year.

Rolls sees 2030 as the likely timing for service entry,