Rolls-Royce completes ground-testing of technology set to power the world’s fastest all-electric plane

Rolls-Royce has completed testing of the ground-breaking technology that will power the world's fastest all-electric plane. All the technology has been tested on a full-scale replica of the plane's core, called an ionBird', including a 500hp electric powertrain powerful enough to set world speed records and a battery with enough energy to supply 250 homes. [...]