Rolls-Royce completed testing of ground-breaking technology that will power the world’s fastest all-electric plane last week.
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.
The first flight is planned for later this year. The company aims to beat the current all-electric flight world record early next year. Half of the project’s funding is provided by the Aerospace Technology Institute (ATI), in partnership with the Department for Business, Energy & Industrial Strategy and Innovate UK.
The plane is part of a Rolls-Royce initiative called ACCEL, short for ‘Accelerating the Electrification of Flight’. The ACCEL project team includes key partners YASA, the electric motor and controller manufacturer, and aviation start-up Electroflight. There is a long history of iron-birds in aviation for testing propulsion systems ahead of flight, but in this case we have named the test airframe ‘ionBird’, after the zero-emission energy source propelling the aircraft.
The ACCEL project is a series of firsts for Rolls-Royce as we journey towards net zero carbon by 2050. It is the first Rolls-Royce project to use offsetting to make the whole programme carbon neutral.
Rolls-Royce ran the propeller up to full speed (approximately 2,400 rpm) using the most power-dense battery pack ever assembled for aircraft propulsion. When at full power during the flight-testing phase, it will propel the aircraft to more than 300mph setting a new world speed record for electric flight. Over 6,000 cells are packaged in the battery for maximum safety, minimum weight and full thermal protection.
Bremont, will be the official timing partner for the all-electric speed record attempt. The British luxury watch maker has also helped develop the design of the plane’s cockpit which will feature a stopwatch, while the company has machined canopy release parts at its Henley-on-Thames manufacturing facility.
