Dufour Aerospace, the pioneering Swiss drone manufacturer, announced a major milestone: the completion of its first flight test campaign with a hybrid-electric system designed in-house for its Aero2 drone. The Aero2 flew several test flights in Zurich, with the hybrid system self-charging its batteries in flight. The news is significant as it completes Dufour’s vision of a hybrid-electric powertrain, with an innovative tilt-wing design, and autonomous flight. This is believed to be the … [Read more...] about Dufour Aerospace achieves drone milestone; First-ever flight with series hybrid-electric engine from vertical takeoff to full-forward flight and back