PLATTSBURGH— Heart Aerospace has completed the first flight of its X1 demonstrator, marking a major milestone for electric aviation.
The aircraft flew for 27 minutes on August 12 from Plattsburgh International Airport (PBG), reaching 1,100 feet above ground level while its battery-electric propulsion system produced more than 1 megawatt of power.
The flight involved a piloted X1 aircraft measuring 106 feet in wingspan and 76 feet in length, with a takeoff weight exceeding 25,000 pounds.
Heart Aerospace, the developer of the aircraft, says X1 is the largest battery-electric aircraft ever flown, providing a full-scale test platform for technologies intended for its future ES-30 regional airliner.
Heart Aerospace X1 Completes First Successful Flight
Heart Aerospace conducted the flight from its X1 flight-test base at Plattsburgh International Airport under an FAA Special Airworthiness Certificate in the Experimental Category.
The 27-minute mission included taxiing, takeoff, climb, maneuvering, and landing as the company assessed the aircraft in actual flight conditions.
The X1 used only battery power during the mission and consumed approximately $5 worth of electricity
The result gives Heart Aerospace real-world data on electric propulsion, aircraft systems, aerodynamics and flight performance at a scale closer to commercial regional aviation.
The aircraft’s first flight follows extensive ground testing and regulatory preparation. The Federal Aviation Administration issued the Special Airworthiness Certificate in July 2026, allowing Heart to begin piloted flight testing after structural, propulsion, systems and taxi evaluations.
Electric Aviation Costs and Benefits
Heart Aerospace says the X1 program is intended to demonstrate that electric propulsion can support commercially relevant aircraft operations.
The company also points to energy costs as a major potential advantage, particularly as airlines face exposure to changes in global jet fuel prices.
The X1 is not the production aircraft that Heart plans to deliver to airlines. Instead, it is a full-scale demonstrator for the ES-30, a 30-seat hybrid-electric regional aircraft designed to combine battery-electric propulsion with additional power for longer routes.
Heart expects the ES-30 to reduce aircraft operating costs by more than 40% compared with legacy regional aircraft when it enters service.
The company attributes the expected reduction to lower energy consumption, simpler electric propulsion, reduced maintenance requirements and greater aircraft availability.
ES-30 Moves Forward Toward Certification
The ES-30 has attracted commitments from major airline customers, including United Airlines (UA), Air Canada (AC) and JSX (XE). Heart Aerospace plans to use lessons from the X1 flight program to refine the production aircraft as development moves toward certification.
The company is already developing the first pre-production ES-30 at its pilot manufacturing plant in Los Angeles. Flight testing of that aircraft is scheduled to begin in 2028, while entry into service is targeted for 2031.
The X1 flight therefore represents more than a technology demonstration. It gives Heart Aerospace operational experience with a large battery-electric aircraft and establishes a foundation for the next stages of ES-30 development.
Heart’s approach also reflects a broader effort to make regional aviation more efficient by introducing electric and hybrid-electric propulsion.
The company says advances in battery technology, aircraft software and crew efficiency could further improve the economics of the ES-30 over time.
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