hybrid propulsion

Heart Aerospace's X1 Battery-Electric Demonstrator Flies 27 Minutes, but ES-36 Airline Design Still Needs Turbines

Heart Aerospace flew its 25,000-pound X1 demonstrator for 27 minutes on battery power alone from Plattsburgh International Airport on August 12, putting over a megawatt through its electric propulsion system. Yet the company's planned ES-36 regional airliner still carries turbogenerators for longer missions, raising questions about how quickly batteries can shrink that fuel-burning role.