NASA said researchers at its Langley Research Center in Hampton, Virginia, have completed a first-of-its-kind wind tunnel test using unsteady Pressure Sensitive Paint on a model wing, in an article published October 2, 2026.
What was tested
According to NASA, the test took place in Langley's Transonic Dynamics Tunnel and used unsteady Pressure Sensitive Paint to study how air flows around a standard wind tunnel model known as the Benchmark Supercritical Wing.
The agency said the paint's capabilities made the model wing glow pink-purple when exposed to special ultraviolet lights, while high-speed cameras captured every detail.
NASA described the test as combining two valuable NASA tools. It said its benchmark wings do not represent a particular type of aircraft, but are meant as universal models to help researchers improve computer modeling using wind tunnel data.
How the paint works
NASA said unsteady pressure sensitive paint is a specialized coating that varies in brightness according to how much pressure the air flow applies to the wing, with high-speed cameras capturing those changes to provide data for computer models.
The agency said researchers at centers including Langley and Ames Research Center in California's Silicon Valley have been working for years to integrate the paint into wind tunnel tests for aircraft and rockets. NASA researchers consider the paint a vital tool and expect to find many more wind tunnel applications in the future, according to the article.
Why NASA calls it a first
NASA said the test marked the technique's first use on a large-scale, freely moving model in a low-oxygen environment, an achievement it attributed to the Transonic Dynamics Tunnel's unique testing capabilities.
The agency said the milestone opens the door for upcoming tests on flexible aircraft models that are designed to bend and adapt during flight to improve efficiency, and lays the foundation for better simulations and designs as NASA advances the future of flight.
The article was written by Brandon Ingram and lists related NASA programs including the Aeronautics Research Mission Directorate, Transformational Tools Technologies and the Transformative Aeronautics Concepts Program.
Key facts and where they come from
- The test ran in the Transonic Dynamics Tunnel at NASA's Langley Research Center in Hampton, Virginia.
Groundbreaking tests at NASA's Langley Research Center in Hampton, Virginia, are paving the way for new wind tunnel capabilities
- Researchers used unsteady Pressure Sensitive Paint on the Benchmark Supercritical Wing model.
researchers used unsteady Pressure Sensitive Paint to study how air flows around a standard wind tunnel model known as the Benchmark Supercritical Wing
- The wing glowed pink-purple under ultraviolet light while high-speed cameras recorded the test.
the paint's special capabilities made the model wing glow pink-purple when exposed to special ultraviolet lights, while high-speed cameras captured every detail
- NASA says it was the technique's first use on a large-scale, freely moving model in a low-oxygen environment.
This test marked the technique's first use on a large-scale, freely moving model in a low‑oxygen environment
- The paint's brightness varies with the pressure applied by airflow, supplying data for computer models.
a specialized coating that varies in brightness according to how much pressure the air flow applies to the wing
- NASA says the milestone enables upcoming tests on flexible aircraft models.
This milestone opens the door for upcoming tests on flexible aircraft models that are designed to bend and adapt during flight to improve efficiency.