Home Air Taxi, UAM/AAM Ampaire begins airline trials with hybrid-electric aircraft in Hawaii Ampaire begins airline trials with hybrid-electric aircraft in Hawaii 15 Dec 2020 | Air Taxi, UAM/AAMElectric AircraftHybrid AircraftNews Ampaire Begins Airline Trials With Hybrid-Electric Aircraft The flight-test Skymaster’s front engine is a 160 kW-capable electric motor.