![Jacks along test section.](https://www.nasa.gov/wp-content/uploads/2024/06/grc-1956-c-40936.jpg)
FLEXIBLE WALL JACKS FOR THE 10X10 FOOT WIND TUNNEL
These hydraulic jacks flex the 10-By 10 Supersonic Wind Tunnel's side walls to control the velocity of the air through the test section (1956).
Image Credit: NASA
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https://www.nasa.gov/image-detail/grc-1956-c-40936/
Image CreditNASA
Size3000x2424px