Project Phoenix achieves milestone, delivers capability upgrade to existing AEDC facilities

A high-pressure air bottle is lifted and lowered into place in the J-5 test facility bottle farm, Aug. 26, 2021, at Arnold Air Force Base, Tenn. The tan building at left will house the test section of the large-scale, clean air, variable Mach, hypersonic test facility. (U.S. Air Force photo by Jill Pickett)