Natilus has tapped Oregon-based Composites Universal Group (CUG) to manufacture the wings for its full-scale Kona regional freighter prototype.
This partnership, announced as the project accelerates toward flight testing, uses a $3.5 million U.S. Air Force research and development grant to accelerate the development of Kona toward full-scale flight testing.
The collaboration changes cargo aviation, as Natilus moves toward a blended wing body (BWB) design that promises a 40% increase in payload capacity compared to traditional aircraft. CompositesWorld reported that the project will utilize carbon fiber-reinforced polymer (CFRP) composites, a move intended to reduce structural weight and improve long-term fatigue resistance.
- CUG will utilize a streamlined tooling process to deliver the wings by spring 2027.
- The design incorporates a conventional spar-and-rib internal structure to ensure FAA-standard reliability.
- The “dry” wing configuration avoids complex fuel storage, focusing strictly on aerodynamic efficiency.
While the Kona’s BWB silhouette is visually distinct from the standard tube-and-wing configurations seen in commercial aviation, the engineering philosophy remains rooted in proven industry standards. According to CompositesWorld, Natilus is emulating the production methods of the Beechcraft King Air series, relying on off-the-shelf technology to de-risk the manufacturing phase.
“Natilus is pushing the envelope by designing an aircraft that offers impressive reductions in fuel consumption and operational costs,” said Steve Ruege, co-founder, president and CEO of CUG, in a statement provided to CompositesWorld. By utilizing CFRP instead of traditional aluminum, the team aims to minimize the thousands of individual rivets typically required for wing assembly, thereby simplifying the build process.
The partnership highlights the growing intersection between defense-funded innovation and commercial cargo logistics. AirFramer notes that CUG’s background includes work on diverse platforms, from the Bye Aerospace eFlyer 2 to projects with SpaceX and Boeing. This cross-sector experience is critical for Natilus, which must prove its prototype can meet the rigorous quality standards expected by both the U.S. Air Force and private freighter operators.
| Feature | Traditional Aluminum Wing | Kona CFRP Composite Wing |
|---|---|---|
| Material Basis | Aluminum alloys | Carbon fiber-reinforced polymer |
| Assembly Complexity | High (thousands of rivets/panels) | Low (fewer parts and fasteners) |
| Maintenance Profile | Corrosion-prone | Improved fatigue resistance |
Once the wings are delivered to the Natilus hangar in San Diego, they will be subjected to a series of rigorous stress tests. These include coupon and bond joint testing, followed by limit load testing to ensure the structural physics align with simulated projections. This process is designed to validate the durability of the composite joints before the aircraft enters full-scale demonstration flight.
“Kona’s blended wing may look different than any plane on the market today, but we are using off-the-shelf technology for the wing build,” said Aleksey Matyushev, CEO of Natilus. The company remains focused on delivering an aircraft that functions within the current cargo market infrastructure while providing the aerodynamic advantages of the BWB design.
The timeline for these milestones is currently set for the spring of 2027, at which point the components will be integrated into the full-scale Kona freighter for its initial flight demonstration.
