{"id":481465,"date":"2026-07-18T09:08:33","date_gmt":"2026-07-17T23:08:33","guid":{"rendered":"https:\/\/www.nasa.gov\/?p=1018951"},"modified":"2026-07-18T09:08:33","modified_gmt":"2026-07-17T23:08:33","slug":"nasa-pushes-new-wing-design-to-find-structural-limits","status":"publish","type":"post","link":"https:\/\/www.vibewire.com.au\/?p=481465","title":{"rendered":"NASA Pushes New Wing Design to Find Structural Limits"},"content":{"rendered":"
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3 Min Read<\/div>\n

\n\t\t\t\t\t\t\t\tNASA Pushes New Wing Design to Find Structural Limits\t\t\t\t\t\t\t<\/h1>\n<\/p><\/div>\n<\/p><\/div>\n
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The 15-foot Structural Wing Experiment Evaluating Truss-bracing test article is fully installed in the Flight Loads Laboratory at NASA\u2019s Armstrong Flight Research Center in Edwards, California, on Wednesday, May 20, 2026. The model is part of NASA\u2019s research to develop technologies for future ultra-efficient aircraft.<\/figcaption><\/div>\n<\/p><\/div>\n
\n\t\t\t\t\t\tCredits: <\/span>
\n\t\t\t\t\t\tNASA\/Carla Escamilla<\/span>\n\t\t\t\t\t<\/div>\n<\/figcaption><\/div>\n<\/p><\/div>\n<\/p><\/div>\n

NASA researchers recently put a new wing design, appearing long and thin with a lightweight structural design, through a series of grueling tests to find its structural limits. What they found left them encouraged about the wing\u2019s potential, even when they pushed it past its intended limits.<\/p>\n

The 15-foot Structural Wing Experiment Evaluating Truss-bracing (SWEET-15) test article is part of NASA\u2019s research to develop future ultra-efficient aircraft. The design incorporates a long wing supported by an aerodynamic strut, based on NASA\u2019s earlier Transonic Truss\u2011Braced Wing concept.<\/p>\n

The research team is working to understand whether SWEET-15\u2019s design and its new lightweight structural designs could help commercial airliners save fuel. But first, they need to understand how it behaves under the kinds of force wings experience in flight.<\/p>\n

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Lab technicians Phil Tofts, Chris McLain, and Jeff Howell and NASA engineers Erin Anderson and Richard Larson prepare the 15-foot Structural Wing Experiment Evaluating Truss-bracing model in the Flight Loads Laboratory at NASA\u2019s Armstrong Flight Research Center in Edwards, California, on Thursday, Dec. 11, 2025. The model is part of NASA\u2019s research to develop technologies for future ultra-efficient aircraft.\u00a0<\/div>\n
NASA\/Christopher LC Clark<\/div>\n<\/figcaption><\/div>\n<\/div>\n<\/div>\n

The SWEET-15 design originated with combining five different advanced composite manufacturing and assembly technologies that enabled the novel structural design. The 15-foot-long test article was then designed and fabricated at NASA\u2019s Langley Research Center in Hampton, Virginia, before traveling to NASA\u2019s Armstrong Flight Research Center in Edwards, California, for testing.<\/p>\n

Over several months, NASA engineers intentionally bent the test wing in the Flight Loads Laboratory at NASA Armstrong. Numerous strain and load sensors, including fiber-optic strain sensors, were placed throughout the structure to track how the wing responded as forces increased.<\/p>\n

The data from the sensors confirmed the predictions made by NASA\u2019s computer models. According to initial findings, the wing withstood the anticipated in-flight forces without issue. The results provided the team with confidence in the new manufacturing approaches and methods for connecting wing parts used in SWEET-15, which could support future efficient aircraft designs. The manufacturing approach, developed at NASA Langley used the Integrated Structural Assembly of Advanced Composites<\/a> robot, aims to produce lighter and stronger composite structures for aerospace vehicles.<\/p>\n

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Lab technicians Jeff Howell, left and Chris Mount install the 15-foot Structural Wing Experiment Evaluating Truss-bracing model in the Flight Loads Lab at NASA\u2019s Armstrong Flight Research Center in Edwards, California, Wednesday, February 11, 2026. The model is part of NASA\u2019s research to develop technologies for future ultra-efficient aircraft.<\/div>\n
NASA\/Christopher LC Clark<\/div>\n<\/figcaption><\/div>\n<\/div>\n<\/div>\n

The test concluded with a deliberate test-to-failure, where engineers increased loads beyond the wing\u2019s design limits to determine how and where it would fail. The structure ultimately failed at roughly 127% of its design limit load, with visible damage appearing near the back edge of the wing and in the upper wing cover. This element of testing provided valuable insight into how the joints connecting the wing to its main strut and a secondary one, called a jury strut, behave under forces beyond the expected flight envelope.<\/p>\n

This marks the first time a representative composite truss-braced wing configuration has undergone this type of structural evaluation.  It was made possible only through NASA collaboration across centers and projects, with researchers utilizing agency resources such as the Fiber Optic Sensing System<\/a> developed to gather data on both aircraft and spacecraft.<\/p>\n

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NASA research engineer\u00a0Walter Hargis\u00a0regulates the 15-foot Structural Wing Experiment Evaluating Truss-bracing model in the Flight Loads Laboratory at NASA\u2019s Armstrong Flight Research Center in Edwards, California, on Tuesday, March 31, 2026. The model is part of NASA\u2019s research to develop technologies for future ultra-efficient aircraft.\u00a0<\/div>\n
NASA\/Ryan Kline<\/div>\n<\/figcaption><\/div>\n<\/div>\n<\/div>\n

To prepare for the testing, engineers at NASA Langley designed, analyzed, and manufactured the wing and completed safety preparations and lab setup.<\/p>\n

Researchers will now analyze the data collected during testing to inform future airframe designs and support NASA\u2019s ongoing efforts to develop more efficient aviation technologies.<\/p>\n

The work is being conducted through NASA\u2019s Subsonic Flight Demonstrator project in the agency\u2019s Research Technology Mission Directorate. The successful testing of multiple innovative components marks a milestone in NASA\u2019s aeronautics research.<\/p>\n

To learn more, visit: <\/p>\n

https:\/\/www.nasa.gov\/aeronautics\/<\/strong><\/a><\/p>\n

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