JetZero just secured $235 million from the U.S. Air Force and another $175 million from private investors to build something the aerospace industry has never produced: a full-size commercial jet where the wings and fuselage merge into a single shape. The design looks nothing like the tube-with-wings you board at the airport. It looks like a manta ray. And the skeptics are paying close attention.

The California startup is assembling its demonstrator aircraft in a hangar in the Mojave Desert. The test plane, built by Northrop Grumman's Scaled Composites division using Pratt & Whitney engines that already power the Boeing 757, is scheduled for its first flight by the end of next year. If that flight goes well, JetZero plans to begin commercial production from a new manufacturing campus in Greensboro, North Carolina, as early as 2030.

The company is targeting the so-called "middle of the market," the 200-to-270-seat range on medium- and long-haul routes. That's the segment Boeing's 757 and 767 once owned, and a stretch that neither Boeing nor Airbus has a strong new product to serve right now.

What makes the design different

In a conventional airliner, the fuselage is basically a pressurized tube dragged through the air by wings bolted to its sides. The blended-wing design, which NASA has researched for decades, turns the entire aircraft into a lifting surface. The theory is that when the body itself generates lift instead of just drag, you need far less fuel to stay in the air. JetZero says the savings could reach 50 percent compared with today's jets.

That number matters enormously to airlines. Fuel is their single largest operating cost. A jet that burns half as much would transform the economics of every medium-haul route it flew.

The wide, flat cabin also opens the door to redesigned interiors: new seating layouts, larger windows, and more flexible arrangements for galleys and lavatories. Engines mounted above the rear are designed to reduce noise on the ground.

United Airlines and Alaska Airlines have both made early investments. United's deal includes a conditional commitment to buy up to 100 aircraft, with options on another 100. That is a serious signal of intent, even if the conditions leave plenty of room to walk away.

The hurdles are real

The promised fuel savings have not yet been proven at full scale. Richard Aboulafia, managing director at AeroDynamic Advisory, told Reuters the JetZero team had surprised a lot of people in the aerospace industry but still faced major obstacles: first demonstrating the efficiency gains actually work, then raising the billions it would take to certify an entirely novel design for commercial passenger use. Certification timelines for genuinely new aircraft types are long, often longer than anyone projects at the start.

Aeronautical analyst Bjorn Fehrm was blunter. He argued the blended-wing shape is better suited to military uses, where stealth and cargo volume matter more than passenger comfort. He noted the fuel savings from the shape had yet to be proven.

JetZero CEO Tom O'Leary acknowledged the novelty directly. "Nobody's ever done this before," he told Reuters.

The demonstrator itself is a stripped-down test vehicle. Only the cockpit will be pressurized. Fuel tanks will occupy the space where passengers would eventually sit. What the company is trying to prove, before anything else, is simply that the shape generates lift with less drag in real flight.

A further funding round is planned before the end of this year, alongside a possible public listing, according to Reuters.

The bigger picture here is structural. Boeing is under enormous pressure after years of safety and production problems. Airbus is capacity-constrained. The middle-of-the-market segment has been underserved for over a decade. If JetZero's demonstrator flies well next year, the startup will enter that vacuum with momentum. If it doesn't, the concept goes back to the research shelf, where it has lived for thirty years.