This opportunity is for a closed-circuit wind tunnel with a test section size of 101.6 mm by 101.6 mm, requiring a maximum operating speed of 50 m/s and turbulence intensity below 1%. The tunnel must include optical-quality glass sidewalls, a centrifugal fan with vibration isolation, and a variable-frequency drive controllable via LabVIEW without wireless connections. Performance must be validated through quantitative analysis, such as CFD simulations. The delivery location is Redstone Arsenal, AL. No budget or submission timeline is specified.