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

https://www.rolls-royce.com/media/press-releases/2020/24-09-2020-rr-completes-ground-testing-of-technology-set-to-power-worlds-fastest-electric-plane.aspx 

https://youtu.be/UpEXwLm_qtw