The first eVTOL technology demonstrator was the Agusta Westland Project Zero hybrid tiltrotor/lift fan aircraft. It was developed to investigate the use of all electric propulsion and other advanced technologies in a vertical lift aircraft. Project Zero was approved in December 2010 and by June 2011, a full-scale demonstrator performed an initial tethered flight at Cascina Costa, Italy. The Project Zero demonstrator was not flown in forward flight.
All Aero 