Closed-Circuit Wind Tunnel (24-inch test)

The U.S. Army Contracting Command-Redstone Arsenal (ACC-RSA) is seeking a Closed-Circuit Wind Tunnel (24-inch test) with specific requirements, including a maximum operating speed of 50 meters per second and a test section height and width of 60.96 centimeters by 60.96 centimeters. The wind tunnel must have a centrifugal fan design and be controlled by a variable-frequency drive (VFD). The tunnel must also have at least two sealable ports or fittings for the insertion of instruments and have a total footprint of not larger than 32 feet in length, 8 feet in width, and 7.5 feet in height. • The wind tunnel must be a closed circuit with a 3/8-inch Swagelok bulkhead fitting. • The tunnel must have a maximum operating speed of approximately 50 meters per second. • The test section walls must have 25.908 millimeter (~1.02-inch)-thick grooves. • The tunnel must have a centrifugal fan design with a variable-frequency drive (VFD). • The tunnel must have at least two sealable ports or fittings for instrument insertion.