Click Here to View This Page on Production Frontend
Click Here to Export Node Content
Click Here to View Printer-Friendly Version (Raw Backend)
Note: front-end display has links to styled print versions.
Content Node ID: 434734
JetZero has broken ground on its first aircraft factory, an eight-million-sq-ft plant at Piedmont Triad International Airport in Greensboro, North Carolina, where the Long Beach, California-based company will produce its Z4 blended-wing-body airliner.
Speaking at a groundbreaking ceremony on June 15, state officials called the project the largest economic development commitment in North Carolina history. JetZero expects to invest $4.7 billion and create more than 14,500 jobs in Guilford County over the next decade, supported by what the company described as the largest state incentive package ever offered to a start-up in any industry.
“Today we are the future of flight,” remarked North Carolina governor Josh Stein. He noted that the state’s aviation industry already contributes about $88 billion a year to its economy and is home to more than 400 aerospace companies. JetZero’s investment is projected to lift the state economy by more than $250 billion. State leaders have cast the project as a defining wager on North Carolina’s aerospace future—one whose payoff, like the Z4 itself, still depends on milestones the company has yet to clear.
The Z4 is a 250-seat airplane aimed at what JetZero calls the underserved middle-of-the-market commercial segment, with a range of up to 5,000 nm. Its blended-wing-body shape, which the company refers to as “all-wing,” merges the wings and fuselage so the full body produces lift, a configuration JetZero says will cut fuel burn by up to 50% compared with conventional tube-and-wing jets. The company forecasts entry into service in the early 2030s.
Groundbreaking Precedes First Flight
JetZero is committing to large-scale manufacturing before it has flown a full-scale airplane. The company’s first full-scale demonstrator—now being assembled by Northrop Grumman subsidiary Scaled Composites at the Mojave Air & Space Port—is expected to fly in 2027. It cleared a critical design review in May 2025.
The demonstrator will fly on a pair of Pratt & Whitney PW2040 turbofans, though JetZero has not yet named an engine for the production airplane. A subscale model under JetZero’s Pathfinder program has been flying test sorties from Edwards Air Force Base in California since 2024.
Co-founder and CEO Tom O’Leary said the demonstrator is about half-built and defended the decision to break ground so early in the program’s development. “We had to be able to compress timelines—time is money,” O’Leary told AIN. “As a venture-backed start-up, investors want to see you accelerating that time frame.” Standing up the factory in parallel with flight testing, he said, lets the company push design, production engineering, and the manufacturing site forward at once rather than in sequence. To do that effectively and efficiently, the company works with digital twins of the aircraft as well as the factory.
The blended-wing-body concept is not new. NASA has funded its development since the 1990s, and JetZero co-founder and chief technology officer Mark Page has worked on the configuration ever since. JetZero’s pitch leans on that maturity: the Z4 is designed around existing, certified systems and off-the-shelf engines rather than unproven propulsion. That choice, the company argues, keeps the airplane inside today’s certification and airline operating frameworks.
FAA Deputy Administrator Chris Rocheleau, who attended the groundbreaking, said the FAA would work with JetZero toward a type certificate and then a production certificate for the Greensboro facility, and that the effort is already underway within the FAA office that certifies large transport airplanes. “We’re moving with a renewed focus on digitizing the overall certification process,” he said.
O’Leary said JetZero has spent more than four years in a familiarization process with the FAA and wants to bring the regulator into its digital design environment to make certification more transparent. “New can be better, and that’s what we’re here to show with the FAA,” he told AIN.
Defense Roots
In 2023, the U.S. Air Force awarded the company a $235 million contract to build and fly the full-scale demonstrator: a KC-46-size aircraft meant to mature blended-wing-body technology for potential tanker and airlift use.
The company says the all-wing design would let a tanker carry up to twice the fuel of the Air Force’s current Boeing KC-46 on a maximum-range mission, and it estimates that converting the service’s tanker, transport, and bomber fleets to the configuration could cut annual fuel costs by about $1 billion.
Sen. Ted Budd, a member of the Senate Armed Services Committee, framed the Z4 as a national security asset while speaking at the groundbreaking ceremony. “Whether it's commercial air travel or high-stakes military operations, the aircraft is a force multiplier and helps overcome the tyranny of distance, particularly in the Indo-Pacific,” he said.
However, those military prospects remain unsettled. Air Force officials have said the Z4 has no inside track to win a future tanker or airlift competition, and the demonstrator is not formally tied to the service’s Next Generation Air-refueling System or Next Generation Air Lifter programs. The latest budget request included no additional money for the Z4.
Airlines Bet Big on BWB
Three major U.S. carriers have lined up behind the Z4 program. United Airlines invested in 2025 and signed a conditional agreement to buy as many as 100 Z4s, with options for 100 more, contingent on the demonstrator flying in 2027 and the airplane meeting United’s requirements. Delta Air Lines is contributing operational and cabin-design input through its Sustainable Skies Lab.
Alaska Airlines, the program’s first airline investor, reaffirmed its support at the groundbreaking ceremony. “We remain committed to this program, not only as investors but as operators,” said Alaska head of corporate development Pasha Saleh. JetZero has raised more than $1 billion and has said it may seek government loans to carry the Z4 to market.
JetZero is not the only company betting on the shape. Natilus, a San Diego start-up founded in 2016, is developing its own blended-wing-body aircraft: the Kona, an optionally piloted regional freighter, and the Horizon, a roughly 200-seat airliner aimed squarely at the Boeing 737 Max and Airbus A320neo. Natilus says the Horizon would burn about 30% less fuel than today’s narrowbodies and reports a backlog it puts at more than 500 aircraft, though it has not disclosed most of its customers and has yet to fly a full-scale design. Like JetZero, it plans to use existing engines and is searching for a U.S. production site.
Both companies face the same open questions—engine selection, range, and how to build a blended-wing airplane at full scale—and both are wagering that airlines want an alternative to the Airbus-Boeing narrowbody duopoly. Earlier efforts hint at the difficulty: Boeing and NASA flew the subscale X-48 between 2007 and 2012 but never put a blended-wing airliner into production. Bombardier has been studying the configuration through its EcoJet research program.
Building a Workforce
JetZero is designing the Greensboro plant with digital and AI tools developed with Siemens and Deloitte, building a digital twin that simulates how machines, people, and materials move through the building before any concrete is poured. The team claims this approach will make Greensboro the most efficient and adaptable aerospace plant of its kind anywhere in the world. O’Leary explained that the team will model production in a virtual environment—running on Nvidia and Amazon Web Services infrastructure—millions of times before the first aircraft is assembled.
“By pairing advanced AI and digital tools with our deep operational and industry experience, we’re helping JetZero set a new standard for manufacturing speed, quality, and scale,” said Deloitte chief client officer Kelly Herod. “Our work with JetZero brings automation and AI together with data strategies informed by our experience at The Smart Factory by Deloitte @ Wichita—connecting design, the shop floor, and the workforce.”
Filling 14,500 jobs in the Triad is among the project’s major challenges. JetZero has committed $30 million to the North Carolina Community College System to build a customized training pipeline, and the state has enrolled the company in workforce efforts that include a push to train 25,000 electrical workers over the next decade. Guilford Technical Community College, which broke ground on an aviation center last year, is expected to help feed the plant.
To reach students earlier, JetZero and Deloitte are bringing Deloitte’s Believers program to Greensboro in partnership with the University of North Carolina at Greensboro, Guilford County Schools, and the Greensboro Chamber of Commerce. The year-long effort aims to reach about 5,000 students and educators in Guilford County and opens this summer with an eight-day educator workshop covering robotics, AI, and engineering. Since 2022, Believers has reached more than 35,000 students across 195 schools, Deloitte said.
Within the Greensboro campus, JetZero is also working with local architecture firm Cline to renovate a 108,000-square-foot building that will serve as its future headquarters. The new facility, which JetZero calls “The Hub,” is slated for completion in early 2027.
Until little more than a decade ago, the ground now cleared for JetZero’s factory held an 18-hole golf course, a cigarette warehouse, and a forklift plant, Piedmont Triad Airport Authority executive director Kevin Baker recalled at the groundbreaking ceremony. Baker closed his remarks by handing O’Leary a golf club from his son Ryan—who once played the par-three fourth hole that sat on the site and now designs airports—inscribed “hole four to Z4.”
The Z4 blended-wing-body airliner that JetZero is pitching at Farnborough is not the airplane the industry has been watching for three years. It is bigger, heavier, sports a new V-tail—and still has no engine.
Weeks before the show, the California start-up revealed a major redesign of its Z4 aircraft. The tailless configuration in the company’s early renderings has been replaced by a V-tail that surrounds the engines on a longer, wider airframe. Fuselage length has grown from 33 to 38 meters, and the wingspan has stretched from 175 to 200 feet (54 to 61 meters).
Those changes addressed a fundamental control problem with the original Z4 design. Lacking a dedicated tailplane for pitch or yaw, the original design relied on winglets and small vertical surfaces—an arrangement without enough pitch control to raise the nose for takeoff, and one that would have struggled to keep the airplane flying straight if an engine failed. Such shortfalls likely would have kept the airplane from passing FAA Part 25 certification flight tests.
V-tailplanes solve the control problem, but at a cost: the longer airframe has 20% more surface area exposed to the airstream—1,630 sq m in all—and all that extra so-called “wetted area” means more friction with the air, the main source of drag on an aircraft this size.
A larger airframe is also a heavier one. Leeham News and Analysis (LNA), using its Aircraft Performance and Cost Model, puts the redesigned Z4’s operational empty weight at 75 tonnes, up from a previous estimate of 71, with maximum takeoff weight rising 4% to 138 tonnes. Passenger capacity is unchanged at 250 seats in a two-class U.S. domestic layout, as is the 5,000-nm maximum range.
JetZero maintains that the “all-wing” shape, in which the entire body produces lift, will cut fuel burn by up to 50% compared with conventional tube-and-wing jets.
The engine gap
What the Z4 still lacks is a production engine—and none exists off the shelf in the 45,000- to 50,000-pound thrust class the redesigned airplane requires.
The full-size demonstrator now in assembly will fly with 1970s-technology Pratt & Whitney PW2040 turbofans, the engine that powers the Boeing 757 and, in a 40,300-pound-thrust variant, the U.S. Air Force’s C-17 transport. JetZero co-founder and CEO Tom O’Leary said the combustor and other key elements of the PW2040 could be replaced to modernize it, but the company increasingly recognizes that a half-century-old engine core is less than ideal for a 21st-century commercial airplane.
Obvious modern candidates fall short. CFM’s Leap, which powers the Airbus A320neo and Boeing 737 Max families, reached its growth limit in the mid-30,000-pound thrust class. Pratt & Whitney’s geared turbofan architecture can scale beyond 100,000 pounds of thrust, but the company is not known to be working on anything that meets the Z4’s requirements.
Modern high-bypass engines, such as the 15:1-bypass-ratio design running as a technology demonstrator in Rolls-Royce’s UltraFan program, lose thrust rapidly with forward speed and altitude. LNA’s modeling shows the updated Z4 needs 19,000 pounds of thrust per engine at 35,000 feet and Mach 0.8, which at a 15:1 bypass ratio translates to 48,000 pounds of static thrust, more than the 43,000 pounds of the demonstrator’s engines.
Rather than attempt to drive a clean-sheet engine program on its own—muscle a start-up simply doesn’t have—JetZero has hitched its engine strategy to the U.S. Air Force, which needs replacement powerplants for its C-17 fleet. The service is preparing to issue a request for information by year-end, and GE Aerospace, Pratt & Whitney, and Rolls-Royce are expected to respond. An engine that meets the C-17 requirement could power JetZero’s proposed aerial refueling tanker and, in turn, the cargo and passenger versions of the Z4.
“Our goal was to also set a partnership with them and to say, what do you have to bring to bear in this thrust class, because that’s the thrust class that we believe not only hits the middle market but hits that Swiss Army knife potential where you can be a freighter, a jetliner, and a tanker,” O’Leary said at a June 26 media briefing.
“Marrying and mapping engine to airframe is among, if not the most challenging thing that you can do, because it’s where everything comes together,” he added. “It’s where lift, weight, drag, and thrust all meet.”
JetZero is targeting Z4 entry into passenger service in 2031 or 2032, but history suggests a brand-new engine takes at least seven years from program launch to service—often preceded by years of research before launch.
The PW2040-powered demonstrator, now about half-built at Northrop Grumman subsidiary Scaled Composites in Mojave, California, is expected to fly in late 2027, having cleared its critical design review in May 2025. The first production flight-test airplane, designated T1, isn’t due to fly until mid-2030. There will be five flight-test airplanes and two additional units dedicated to static tests. A subscale Pathfinder model has been flying from Edwards Air Force Base since 2024.
“We want to have the most rigorous process possible,” O’Leary said. “The Air Force is leading that because they’re showing how serious they are about not just having a re-engine for the C-17 but having versatility.”
Factory first
While the engine question plays out, JetZero is pouring concrete. On June 15, the company broke ground on its first factory: an 8 million sq ft plant at Piedmont Triad International Airport in Greensboro, North Carolina, where it plans to invest $4.7 billion and create more than 14,500 jobs over the next decade. State officials called it the largest economic development commitment in North Carolina history, backed by what the company described as the largest state incentive package ever offered to a start-up.
Committing to large-scale manufacturing before flying a full-scale airplane is an unusual sequence. “We had to be able to compress timelines—time is money,” O’Leary told AIN at the groundbreaking. “As a venture-backed start-up, investors want to see you accelerating that time frame.”
Standing up the factory in parallel with flight testing, he said, lets the company push design, production engineering, and the manufacturing site forward all at once rather than in sequence, aided by digital twins of both the aircraft and the factory.
The plant’s design—developed with Siemens and Deloitte, and running on Nvidia and Amazon Web Services infrastructure—simulates how machines, people, and materials move through the facility before the building is constructed.
FAA Deputy Administrator Chris Rocheleau, who attended the groundbreaking ceremony, said the agency is already working with JetZero toward a type certificate and, eventually, a production certificate for Greensboro.
Who’s on board
Three major U.S. carriers have lined up behind the Z4 program. United Airlines invested in 2025 and signed a conditional agreement to buy as many as 100 Z4s, with options for 100 more, contingent on the demonstrator flying in 2027 and the airplane meeting the airline’s requirements.
Alaska Airlines was the program’s first airline investor, and Delta Air Lines is contributing operational and cabin-design input. JetZero has raised more than $1 billion and has said it may seek government loans to carry the Z4 to market.
The Air Force awarded JetZero a $235 million contract in 2023 to build and fly the demonstrator, but officials have said the Z4 has no inside track in any future tanker or airlift competition, and the latest federal budget request included no additional money for the program. For now, JetZero is building the factory, the demonstrator, and the order book all at once; the engine will have to catch up.