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.

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

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

Rolls sees 2030 as the likely timing for service entry,

Liquid hydrogen ground tests will begin later this year.

SpaceX CRS-25 autonomously docked to the International Space Station’s U.S. segment Harmony module on July 16, delivering more than 5,800 lbs. of crew supplies, science investigations, technology development projects and station hardware.

Supply chain problems have slowed deliveries of Leap 1 engines to Airbus and Boeing.