Designed by VX Aerospace, the VX-1 KittyHawk™ is an innovative blended-wing aircraft that combines aerodynamic efficiency, dynamic stability, and advanced composite construction. Unlike traditional aircraft designs, the KittyHawk utilizes a unique wingless carbon composite structure that increases usable internal volume, reduces part count, and improves structural efficiency. By combining proven blended-wing concepts with modern materials and manufacturing techniques, VX Aerospace created a platform that challenged conventional aircraft design while demonstrating the potential of advanced composite structures.
The VX-1 KittyHawk was developed through a collaboration between VX Aerospace and the Department of Mechanical and Aerospace Engineering at North Carolina State University. The aircraft concept originated at VX Aerospace, while computational fluid dynamics (CFD), wind tunnel testing, and flight performance analysis were conducted with university partners.
Following concept validation, VX Aerospace designed and manufactured a fully instrumented subscale demonstrator to evaluate the aircraft’s performance in flight. The project served as both a technology demonstrator and a research platform, allowing the team to investigate the characteristics, advantages, and limitations of blended-wing aircraft configurations.
Traditional aircraft designs often require compromises between payload volume, structural efficiency, manufacturing complexity, and operating costs. VX Aerospace set out to explore whether a blended-wing configuration could overcome some of these limitations by creating an aircraft with greater internal volume, improved aerodynamic performance, and a simplified structural architecture.
The design team also sought to create a platform capable of supporting alternative fuel technologies. The aircraft’s large internal volume was intended to accommodate compressed natural gas (CNG) fuel tanks without aerodynamic penalties, creating opportunities for lower operating costs and reduced emissions compared to conventional aviation fuels.
The VX-1 KittyHawk combined a blended-wing-body architecture with advanced composite materials to create a lightweight, structurally efficient aircraft. The design eliminated many of the components typically required in conventional aircraft construction while maintaining strength, durability, and aerodynamic performance.
Central to the solution was the use of CHOMARAT’s C-Ply composite reinforcement technology. According to VX Aerospace CEO Bob Skillen, the material enabled the company to combine established hand layup and oven-curing processes with performance characteristics typically associated with more expensive aerospace manufacturing methods.
The resulting aircraft demonstrated how innovative materials, modern engineering techniques, and efficient manufacturing processes could be combined to create a highly capable airframe with fewer parts, greater internal volume, and improved manufacturing efficiency.
One of the most significant achievements of the KittyHawk program was the integration of advanced composite materials into a highly simplified aircraft structure.
The airframe’s geometry allowed for substantial parts consolidation. At production scale, the basic structure consisted primarily of four ribs, an upper skin, and a lower skin. The design eliminated the need for a traditional wing spar and significantly reduced assembly complexity.
To make the unconventional design structurally viable, VX Aerospace partnered with CHOMARAT to utilize C-Ply composite reinforcements. Developed through collaborative research involving CHOMARAT and Stanford University’s Dr. Steven Tsai, C-Ply was designed to optimize fiber performance while improving manufacturability.
The material provided several advantages:
The composite system allowed VX Aerospace to utilize established hand layup and oven-curing techniques while achieving performance characteristics comparable to more expensive aerospace manufacturing methods such as autoclave-cured prepreg and automated tape placement.
According to Skillen:
“C-Ply is the first true advance in carbon fabrics in a long time. It is designed to optimize fiber performance. Chomarat capitalized on the low-angle, thin-ply, non-crimp laminate concept developed by Prof. Steve Tsai. The result is a fabric that allows for cost-effective production of open mold parts with the same (or better) performance characteristics of ATP parts. This is a game changer for small business.”
Following completion of the design and manufacturing process, VX Aerospace conducted flight testing using a quarter-scale demonstrator aircraft.
On June 6, 2014, the aircraft successfully completed its maiden flight at Foothills Regional Airport near Morganton, North Carolina. During the flight, the aircraft demonstrated the viability of the blended-wing concept and validated the aerodynamic analyses that had guided the design process.
The flight test program provided valuable data regarding the performance, stability, and handling characteristics of the aircraft while confirming the effectiveness of the structural and manufacturing approach developed by the project team.
The KittyHawk program brought together expertise from industry and academia to advance both aircraft design and composite manufacturing technology.
Key project partners included:
North Carolina State University supported aerodynamic analysis, wind tunnel testing, and flight performance studies. CHOMARAT supplied the C-Ply reinforcement technology that made the aircraft’s innovative structure possible. Stanford University’s Dr. Steven Tsai contributed foundational research that informed the development of the composite material system used throughout the project.
The KittyHawk program demonstrated how advanced composites and innovative aircraft architectures can be used to simplify manufacturing, reduce part count, and improve structural efficiency.
The aircraft’s blended-wing design created significantly more usable internal volume than conventional aircraft while maintaining aerodynamic performance and structural integrity. The design also reduced manufacturing complexity by consolidating components and eliminating traditional structural elements such as wing spars.
The project further demonstrated the potential for alternative fuel integration through the use of compressed natural gas, offering opportunities for lower operating costs and reduced environmental impact.
Beyond the aircraft itself, the program helped validate advanced composite manufacturing techniques that can make aerospace-grade performance more accessible to small and mid-sized manufacturers.
The VX-1 KittyHawk received the 2015 JEC Composites Magazine Special Innovation Award in recognition of its innovative use of advanced composite materials and blended-wing aircraft architecture. The award highlighted the project’s successful integration of CHOMARAT’s C-Ply reinforcement technology and recognized the collaborative effort between VX Aerospace, academic partners, and industry innovators to advance aerospace composite design and manufacturing.
