Largest all-electric aircraft test flight
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The gist
Heart Aerospace's X1, the largest all-electric aircraft, flew 27 minutes on $5 of electricity.
The flight validates tech for a 30-seat hybrid-electric airliner, targeting certification by 2031.
Background
Heart Aerospace, a Los Angeles-based startup, developed the X1 as a demonstrator for its planned ES-30 hybrid-electric airliner. The X1 is the largest battery-electric fixed-wing aircraft to fly, with a wingspan of 106 feet and takeoff weight over 25,000 pounds. Its first flight on August 12, 2026, at Plattsburgh International Airport in New York, was conducted under an FAA Special Airworthiness Certificate in the Experimental Category, testing taxi, takeoff, climb, maneuvering, and landing. The flight aimed to validate key technologies and performance for future commercial electric aviation.
How it unfolded
- Aug 12, 2026Heart Aerospace's X1 demonstrator completed its first test flight at Plattsburgh International Airport, flying for 27 minutes and reaching 1,100 feet, with over 1 MW of power.
- Aug 13, 2026Heart Aerospace announced the successful flight, highlighting it as the largest all-electric aircraft to fly, and noted the flight used only $5 of electricity.
- Aug 14, 2026Multiple media outlets reported on the milestone, with Heart's CTO Ben Stabler stating the flight demonstrated the company's capability to design, build, test, and operate a clean-sheet electric aircraft.
Who’s saying what
- Official
- Heart Aerospace's CTO Ben Stabler said the flight showed the company can 'design, build, test, operate, and continuously improve a clean-sheet electric commercial aircraft.'
- Analysts
- Some observers note the ES-30 is hybrid-electric, not fully electric, and will still burn fuel with a range extender, reflecting current battery limitations.