CityAirbus is an all-electric, four-seat, multicopter vehicle demonstrator that focuses on advancing remotely piloted electric vertical take-off and landing (eVTOL) flight. In March 2019 Airbus presented the model of the CityAirbus to the public on the town hall square in Ingolstadt. The unmanned maiden flight took place on 3 May 2019 in Donauwörth. Manned flights are planned from 2025.
The propulsion of the eight-rotor helicopter (multicopter) is housed in four fixed drive nacelles, each containing two counter-rotating coaxial propellers with a diameter of 2.80 m. The lower propeller of each nacelle has a shroud, while the upper one rotates freely in the airflow. This design was chosen with a view to low air resistance, which would be much higher if the nacelle were completely encased [8]