# Heart Aerospace X1 FAA approval and first flight > Live situation record from CLSTR: https://clstr.news/situations/heart-aerospace-x1-faa-approval > Updated: 2026-08-17T19:30:20.000Z. Sources: 69. Developments: 5. In late July 2026, the U.S. Federal Aviation Administration (FAA) issued a Special Airworthiness Certificate in the Experimental Category for Heart Aerospace’s X1 hybrid-electric demonstrator. This permit allowed the Swedish-founded company, which has relocated its R&D operations to the United States, to begin flight-test operations at Plattsburgh International Airport in New York. The X1 is a full-scale prototype designed to validate technologies for the planned 30-seat ES-30 regional airliner. The ES-30 aims to operate routes up to 200 km on battery power and up to 800 km using sustainable aviation fuel, with a target for commercial service by 2031. Commercial interest includes a letter of intent from Icelandair for five ES-30 aircraft, as well as support from strategic partners such as United Airlines and Air Canada. Heart Aerospace projects that its technology could reduce operating costs by more than 40% compared to conventional regional jets. On August 12, 2026, Heart Aerospace completed the first successful flight of the X1. The piloted mission lasted 27 minutes, reaching an altitude of 1,100 feet AGL using an all-electric propulsion system delivering over one megawatt of power. The aircraft features a 106-foot (32-meter) wingspan, a length of 23 meters, and a takeoff weight exceeding 25,000 pounds (11 tonnes). The company described the X1 as the “largest battery-electric aircraft ever flown.” While the flight consumed approximately USD 5 worth of electricity, the company noted this figure represents gross electricity consumption and does not account for maintenance, crew, or long-term battery degradation. While the X1 is purely electric, the upcoming ES-30 will utilize an independent hybrid architecture combining electric motors with conventional turboprop engines. In addition to United Airlines and Air Canada, the company has secured commitments from Mesa Air Group for the ES-30. ## Claims - The X1 is the largest battery-electric aircraft to have ever flown. (corroborated by 10 sources) - The inaugural flight of the X1 lasted 27 minutes. (corroborated by 10 sources) - The X1 reached an altitude of 1,100 feet (335 meters). (corroborated by 10 sources) - The aircraft's electric propulsion system delivered more than one megawatt of power. (corroborated by 10 sources) - The electricity consumed during the flight cost approximately five dollars. (corroborated by 7 sources) - The X1 is a technology demonstrator for the future ES-30 regional hybrid aircraft. (corroborated by 7 sources) - The ES-30 certification target has been moved to 2031. (single source) - United Airlines and Mesa Air Group have each committed to purchasing 100 aircraft. (single source) ## Timeline ### 2026-08-17: Heart Aerospace X1 completes first flight of world's largest electric aircraft Heart Aerospace's X1, the world's largest battery-electric aircraft, completed its first 27-minute test flight in New York, serving as a technology demonstrator for the future ES-30 hybrid regional airliner. 17 sources. https://clstr.news/cluster/heart-aerospace-completes-first-flight-of-x1-electric-aircraft ### 2026-08-15: Heart Aerospace X1 completes first flight of world's largest electric plane Heart Aerospace completed the first flight of the X1, the world’s largest battery-electric aircraft, in New York, paving the way for future hybrid-electric regional passenger planes. 16 sources. https://clstr.news/cluster/heart-aerospace-completes-inaugural-flight-of-x1-electric-prototype ### 2026-08-13: Heart Aerospace X1 completes first flight of world's largest electric aircraft Heart Aerospace successfully completed the first flight of the X1, the world’s largest battery-electric aircraft, using approximately $5 of electricity during its 27-minute test in New York. 25 sources. https://clstr.news/cluster/heart-aerospace-completes-first-flight-of-x1-electric-demonstrator ### 2026-07-26: Heart Aerospace gets FAA nod for X1 electric aircraft tests The FAA has approved flight testing of Heart Aerospace’s X1 electric prototype, paving the way for the largest electric aircraft and supporting Icelandair’s planned purchase of five ES‑30 hybrids. 5 sources. https://clstr.news/cluster/heart-aerospace-gets-faa-nod-for-x1-electric-aircraft-tests ### 2026-07-24: Heart Aerospace receives FAA approval for X1 hybrid‑electric test flights in US Heart Aerospace secured an FAA Special Airworthiness Certificate, enabling its X1 hybrid‑electric demonstrator to start flight testing in New York as a step toward the 30‑seat ES‑30 regional airliner. 7 sources. https://clstr.news/cluster/heart-aerospace-electric-aircraft-receives-faa-approval-for-us-test-flight --- Cite as: Heart Aerospace X1 FAA approval and first flight. CLSTR, https://clstr.news/situations/heart-aerospace-x1-faa-approval