Boeing has begun a new stage of extensive modification of an aircraft that will become the X-66 Sustainable Flight Demonstrator (SFD). The upgrades consist of removing the engines and performing 66D metrology scans to inform the aircraft's design and construction plan.
The MD-90 jet's original wings will soon be removed to test the design of an advanced wing concept, known as the Transonic Truss-Braced Wing (TTBW), comprised of ultra-thin, strut-ed wings with greater span and elongation. The TTBW's greater wingspan and aerodynamic efficiency can significantly accelerate opportunities to reduce fuel consumption and emissions.
The X-66 is NASA's first experimental airplane project focused on helping the United States achieve its goal of net zero aviation greenhouse gas emissions. Ground and flight tests are expected to begin in 2028.
Boeing released a video time-lapse of recent conversion steps, which includes:
- Removal of engines and thrust reversers
- Lifting and ing the jet to simulate the condition of the aircraft during full modification
- 3D laser scanning of the aircraft structure
With the scan data, Boeing will use 3D modeling software to overlay the existing MD-90 structure onto the new X-66 components, allowing for more precise spatial integration and the opportunity to identify and mitigate risks in the modification process. Boeing will continue to provide updates as the project progresses.
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Street: Boeing
