Rolls-Royce is designing the 'world's fastest all-electric airplane' named ACCEL that can reach up to 300 mph
There are three 750R lightweight electric motors producing over 500 horsepower that were designed and produced by YASA.
The aircraft’s propeller blades spin at a lower revolutions per minute rate than a typical airplane. This allows the ACCEL to fly stabler and quieter.
The electric powertrain has 750 volts and a 90% energy efficiency, all with no emissions.
“It is these technological advances in power density and energy capacity of electric systems that will make the aerospace industry’s goal of actively limiting the environmental impacts of flight possible,” Rolls-Royce wrote.
It also costs less to maintain an electric aircraft because of reduced fuel and operation costs, according to its maker.
The aircraft can operate beyond normal hours because it's electric powertrain won't be as loud as a typical non-electric aircraft according to its maker.
The aircraft has vertical takeoff and landing (VTOL) and short take off and landings (STOL) capabilities in order to reduce emissions and noise while increasing its ability to operate in denser urban areas, according to the automaker.
“More silent and economically efficient airplanes will allow new commuter concepts to offer transport services beyond the traditional flight routes,” Rolls-Royce wrote in a statement. “This has the potential to reinvigorate small regional airports and to make flight transport more accessible to large parts of society.”
Rolls-Royce predicts there will be four markets for hybrid aircrafts: small two to four-seater planes, air taxis, commuter planes with less than 20 seats, and turbofan commercial flights.
The aviation company also unveiled ACCEL's test airframe ionBird, which will be used to test the propulsion system over the next several months.
The plane is scheduled to take flight in Great Britain in spring of 2020.
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