Aircraft scale: The X1 spans 106ft, measures 76ft nose to tail, weighs over 25,000 lb at takeoff, and its all-electric propulsion delivered more than 1MW of power.
- Flight details: Heart Aerospace's X1 demonstrator flew on August 12, 2026, at Plattsburgh International Airport, lasting 27 minutes and reaching 1,100ft above ground level under an FAA Special Airworthiness Certificate in the Experimental Category.
- Operating cost signal: The battery-powered X1 used approximately $5 of electricity on its first flight, against jet fuel prices of $3.50 per gallon, up 63% year over year.
- Production roadmap: The 30-seat hybrid-electric ES-30 targets FAA Part 25 certification and 2031 entry into service, with more than 40% lower operating costs than legacy regional aircraft; pre-production work is underway in Los Angeles, California, with flight testing scheduled for 2028.
- Customer backing: United Airlines, Air Canada, and JSX have made customer commitments to the ES-30, with executives from United and Air Canada publicly endorsing the X1 milestone.
A first flight at commercial scale
Heart Aerospace has completed the first flight of its X1 demonstrator aircraft, and the numbers matter. The flight took place on August 12, 2026, at Heart's X1 flight-test base at Plattsburgh International Airport in upstate New York. It lasted 27 minutes and reached an altitude of 1,100ft above ground level.
The X1 is not a small science project. The aircraft has a wingspan of 106ft, measures 76ft nose to tail, and weighs over 25,000 lb at takeoff. Its all-electric propulsion system delivered more than 1MW of power during the mission. The flight was conducted under an FAA Special Airworthiness Certificate in the Experimental Category.
The economics behind the engineering
For manufacturing and operations professionals, the cost figures are arguably the headline. X1 is powered entirely by batteries and used approximately $5 worth of electricity during its first flight. That figure lands against a backdrop of jet fuel prices averaging $3.50 per gallon, up 63% year over year — a spread that frames the business case for electric propulsion about as starkly as any single flight could.
“With the first flight of X1, Heart Aerospace has demonstrated electric flight at the scale of a commercial airliner,” said Anders Forslund, founder and CEO of Heart Aerospace. “Electric commercial aircraft have the potential to fundamentally reshape airline economics and, ultimately, lower the cost of air travel for passengers. This is at the heart of our vision for abundant air travel, with electrification enabling more affordable, frequent, and cleaner air service to and from airports closer to home.”
From demonstrator to production: the ES-30 path
The X1 exists to de-risk what comes next: the ES-30 production aircraft. The ES-30 is a 30-seat hybrid-electric regional airliner designed for FAA Part 25 certification, with entry into service targeted for 2031. Heart Aerospace expects the ES-30 to reduce aircraft operating costs by more than 40% compared with legacy regional aircraft.
Customer commitments are already on the books from United Airlines, Air Canada, and JSX — and the airlines are saying so publicly.
“The first flight of X1 is a major technical achievement for Heart Aerospace, a company United has been proud to support,” said Michael Leskinen, chief financial officer of United Airlines. “Electric commercial aircraft have real potential to deliver a better travel experience for passengers while strengthening our business, and we look forward to Heart’s continued development of the ES-30 and its potential future role in United’s network.”
“The energy transition for aviation will require a range of solutions, from operational efficiencies to sustainable aviation fuels, and ultimately the development of new aircraft technologies,” said John Di Bert, executive vice president and chief financial officer of Air Canada. “Our investment in Heart Aerospace and the ES-30 reflects Air Canada’s commitment to supporting innovative technologies that have the potential to transform aviation. X1’s first flight is an important milestone in that journey, and we look forward to continuing to work with Heart Aerospace as the ES-30 program progresses and plays its part in the future of regional aviation.”
Building the manufacturing capability
Heart Aerospace is currently developing the first pre-production ES-30 at its pilot manufacturing plant in Los Angeles, California, with flight testing scheduled to begin in 2028. Chief technology officer Ben Stabler frames the X1 program as an organizational proof point — a demonstration that the company can design, build, test, and operate a clean-sheet electric commercial aircraft, and carry that capability into production.
The complexity here is real: a demonstrator flight validates propulsion and airframe at scale, but the path to FAA Part 25 certification and a 2031 service entry is long.
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