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Ben Holton, right, deputy, 716th Test Squadron, 804th Test Group, Arnold Engineering Development Complex, uses a model of the Propulsion Wind Tunnel facility at Arnold Air Force Base, Tennessee, to explain how the wind tunnels operate to Gen. Duke Z. Richardson, left, commander, Air Force Materiel Command, during Richardson's visit to Arnold AFB, headquarters of AEDC Aug. 26, 2022. The PWT facility has two 16-foot wind tunnels, one transonic and one supersonic, and one 4-foot transonic wind tunnel. The 16-foot transonic wind tunnel is the largest one in the U.S. used for store separation testing. (U.S. Air Force photo by Jill Pickett) (This image has been altered by obscuring a badge for security purposes.)
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