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Gen. Duke Z. Richardson, commander, Air Force Materiel Command, shakes hands with Frank Wonder, Arcs Section chief, before a briefing during a visit to Arnold Air Force Base, Tennessee, headquarters of AEDC Aug. 26, 2022. The 718th Test Squadron, 804th Test Group, AEDC, operates the arc heaters to simulate the aerodynamic heating and mid-to-high shear pressures of extreme environmental conditions experienced in re-entry and hypersonic flight. (U.S. Air Force photo by Jill Pickett)
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