Boom Supersonic's Greensboro Factory Sits Idle as State Weighs Next Steps

Boom Supersonic marked the completion of construction on its Overture Superfactory with a ribbon-cutting ceremony on June 17, 2024. Nearly two years later, the 179,000-square-foot hangar at Piedmont Triad International Airport has yet to produce a single aircraft, and United Airlines CEO Scott Kirby has given Boom's Overture supersonic jet a 50-50 chance of becoming a reality, putting North Carolina officials under growing pressure to decide how long the state keeps waiting.

The Overture Superfactory, located at Piedmont Triad International Airport in Greensboro, is the first supersonic airliner factory in the United States. Since 2022, North Carolina has spent more than $50 million in taxpayer dollars to build the facility, which today sits dormant. The state allocated nearly $107 million for the project in total, and Boom has already used the bulk of its $56.75 million allotment to reimburse what it paid contractors to build the factory, according to the News & Observer.

Kevin Baker, executive director of the Piedmont Triad Airport Authority, acknowledged the uncomfortable reality of money tied up in an inactive site. Still, he expressed confidence that the space would not go to waste. "I have absolute confidence that we'd be able to fill this building anytime we need to," Baker said. "There's already been interest in this building."

That confidence will be tested by a hard contractual deadline. The lease between Boom and the Piedmont Triad Airport Authority allows termination if Boom employs fewer than 500 people at the Greensboro site by December 31, 2026. The company originally committed to hire 1,761 workers there. The gap between that pledge and current reality is stark: no Overture aircraft have been built or tested at PTI.

Boom does have real momentum with its XB-1 demonstrator breaking the sound barrier in 2025. But that testing took place in California, not Greensboro. The company says it "looks forward to beginning Overture test production in North Carolina as soon as possible." In December, Boom announced a separate initiative to power data centers from its Colorado campus, drawing scrutiny over whether the company's focus has shifted. A Boom spokesperson pushed back, writing in an email that the effort "won't disrupt its North Carolina timeline further," and that "We expect (the turbine) to accelerate the path to supersonic passenger flight, by providing a key source of engine reliability data and by accelerating Boom's path to profitability."

Kirby acknowledged that the current Overture design has too short a range to be commercially viable, and Boom has struggled to secure established engine partners. GE, along with major engine builders Pratt & Whitney, Rolls-Royce, Honeywell Aerospace, and Safran, passed on developing an engine for Boom. Boom then formed an alliance that included Florida Turbine Technologies, GE Additive, and StandardAero to invent a propulsion solution, an engine called the Symphony.

The Greensboro facility was originally framed as the economic anchor of an emerging aerospace corridor in the Triad. The Superfactory was expected to contribute more than $32 billion to North Carolina's economy and create 2,400 jobs over the next 20 years. Whether any of that materializes now depends on what happens before year's end. The December 31 lease deadline gives Baker and state officials their clearest legal checkpoint yet, and with Boom still far short of 500 Greensboro employees, the question of what to do with a publicly funded hangar full of empty floor space is no longer hypothetical.