Rolls-Royce completes first tests of ‘game-changing’ greener aircraft engine

Rolls-Royce has completed the first tests of its UltraFan demonstrator aircraft engine at its facility in Derby,UK. The tests were conducted using 100% sustainable aviation fuel (SAF) primarily from waste-based feedstock, but the company is also exploring options for hybrid-electric and hydrogen-powered options. “The UltraFan demonstrator is a game changer. In the making for nearly a decade, UltraFan has been designed to showcase technologies that can deliver greater fuel efficiency for b