For acoustic control and a quieter flight, the eight propellers are rotated at a relatively low speed of less than 1000 rpm.
A Rolls-Royce Electrical team in Munich, Germany has developed an electric propulsor comprising a 200kW electric motor and associated power electronics, controller and the power protection and distribution system to generate, distribute and manage the required high electro-mechanical torque. This is then, converted into tremendous thrust via the platform propellers at low speed.
Mike added: “Both these projects are an important demonstration that Rolls-Royce can provide the innovative and sustainable power and propulsion technology needed for the different sized aircraft of the future. This technology is also a key enabler in the highly contested urban air mobility market and several other segments of the aerospace market.”
The CityAirbus’ first untethered flight was in December 2019 and flights have now taken place as part of an extensive new testing campaign including altitude testing. The team are aiming to reach new heights in the coming weeks with technology that could help shape future travel within cities.