Overview
- Heart’s X1 demonstrator completed a 27-minute piloted flight on Wednesday, August 12, 2026, reaching about 1,100 feet under an FAA Special Airworthiness Certificate in the Experimental Category.
- The aircraft is the largest battery-electric plane flown so far, with a 106-foot wingspan and a takeoff weight above 25,000 pounds, and its propulsion system delivered more than one megawatt of power during the test.
- Heart reported the all-battery flight used roughly $5 of electricity and says the X1 is meant to validate systems for its planned 30-seat ES‑30 hybrid-electric regional airliner.
- Heart is building a pre-production ES‑30 at its Los Angeles pilot plant with flight testing slated for 2028 and a 2031 entry-into-service target, but the company frames those dates as program goals subject to risk.
- Battery energy-density limits mean the ES‑30 will use a hybrid architecture to extend range to roughly 497–500 miles versus about 124–125 miles on battery only, and the program still faces FAA Part 25 certification, technical and operational hurdles, and airline validation despite customer commitments and projected operating-cost savings.