On the 12th of this month (local time), Heart Aerospace's X1 demonstrator aircraft, hailing from Sweden, successfully accomplished its inaugural manned flight at Plattsburgh International Airport in New York State, USA. The X1 currently stands as the largest battery-electric aircraft to have taken to the skies. This test flight, conducted in compliance with relevant certificates issued by the U.S. Federal Aviation Administration, spanned approximately 27 minutes and reached a peak altitude of roughly 335.3 meters. During this time, multiple test items were meticulously carried out. The total electricity expense for the entire test flight amounted to approximately 33.8 yuan, highlighting a substantial energy cost advantage when compared to traditional turboprop regional aircraft. The X1 functions as a technological demonstration prototype for the 30-seat regional airliner ES-30, which is slated for commercial operation in 2031 and has already garnered purchase intention orders from numerous airlines. Nevertheless, at this juncture, the X1 is only capable of conducting short-duration, low-altitude test flights. Constrained by battery energy density, it currently lacks the capability for long-distance flights on commercial routes. The forthcoming mass-production version will adopt a hybrid solution to overcome the range limitation.