Boeing has begun extensive modification of an airplane that will become the X-66 Sustainable Flight Demonstrator (SFD), removing engines and completing 3D metrology scans to inform the plane’s design and build plan.
The MD-90 jet’s original wings will soon be removed to test the Transonic Truss-Braced Wing (TTBW) design with new ultrathin wings braced by struts with larger spans and higher-aspect ratios.
TTBW’s wider wing span and aerodynamic efficiency could significantly accelerate opportunities to reduce fuel use and emissions.
The X-66 is NASA’s first experimental plane project focused on helping the U.S. achieve its goal of net-zero aviation greenhouse gas emissions. Ground and flight testing is expected to begin in 2028.
Boeing released a time-lapse video of recent steps in the conversion including:
- Removal of the engines and thrust reversers
- Jacking and shoring of the jet to simulate the condition of the airplane during full modification
- 3D laser scanning of the airplane structure
With the scanning data, Boeing will use 3D modeling software to overlay the existing MD-90 structure with the new X-66 components.
Notably, this will enable more accurate spatial integration and the opportunity to identify and mitigate risks early in the modification process.
Boeing will continue to provide updates as the project progresses.
Source: https://boeing.mediaroom.com/news-releases-statements?item=131385#assets_all
