Keith Thornburgh
Gen. Duke Z. Richardson, commander of Air Force Materiel Command, left, speaks with Lt. Col. Joseph Sabat, 716th Test Squadron commander, right, outside of the Propulsion Wind Tunnel Facility lobby at Arnold Air Force Base, Tenn., April 24, 2025. Also pictured is Chief Master Sgt. Bill Fitch, AFMC Command Chief Master Sergeant, center. Richardson visited Arnold AFB, headquarters of Arnold Engineering Development Complex, headquarters of AEDC, to tour several test facilities, meet with personnel, and receive updates on various programs and projects. (U.S. Air Force photo by Keith Thornburgh) (This image was altered by obscuring badges for security purposes) 
Gen. Duke Z. Richardson, commander of Air Force Materiel Command, center left, and Chief Master Sgt. Bill Fitch, AFMC Command Chief Master Sergeant, center right, meet with members of the Arnold Engineering Development Complex Junior Force Council during an April 24, 2025, visit to Arnold Air Force Base, Tenn. Richardson visited Arnold AFB, headquarters of AEDC, to tour several test facilities, meet with personnel, and receive updates on various programs and projects. (U.S. Air Force photo by Keith Thornburgh) 
Gen. Duke Z. Richardson, commander of Air Force Materiel Command, left, shakes hands with Joshua Johns, Arnold Engineering Development Complex Financial Management technical director, during an April 24, 2025, visit to Arnold Air Force Base, Tenn. Richardson visited Arnold AFB, headquarters of AEDC, to tour several test facilities, meet with personnel, and receive updates on various programs and projects. (U.S. Air Force photo by Keith Thornburgh) 
Gen. Duke Z. Richardson, commander of Air Force Materiel Command, center, speaks with Col. Grant Mizell, commander of Arnold Engineering Development Complex, right, and Chief Master Sgt. Jennifer Cirricione, AEDC senior enlisted leader, in the lobby of the Propulsion Wind Tunnel Facility April 24, 2025. Richardson visited Arnold AFB, headquarters of AEDC, to tour several test facilities, meet with personnel, and receive updates on various programs and projects. (U.S. Air Force photo by Keith Thornburgh) 
Gen. Duke Z. Richardson, commander of Air Force Materiel Command, left, speaks with Col. Grant Mizell, commander of Arnold Engineering Development Complex, during a stop in the Propulsion Wind Tunnel Facility lobby as part of an April 24, 2025, visit to Arnold AFB, Tenn. The base serves as the headquarters of AEDC. Richardson visited Arnold AFB, headquarters of AEDC, to tour several test facilities, meet with personnel, and receive updates on various programs and projects. (U.S. Air Force photo by Keith Thornburgh) 
Gen. Duke Z. Richardson, commander of Air Force Materiel Command, right, is greeted by Arnold Engineering Development Complex Deputy Director Kevin Muckerheide April 24, 2025, in the lobby of the Propulsion Wind Tunnel Facility at Arnold Air Force Base, Tenn. Richardson visited Arnold AFB, headquarters of AEDC, to tour several test facilities, meet with personnel, and receive updates on various programs and projects. (U.S. Air Force photo by Keith Thornburgh) 
Gen. Duke Z. Richardson, commander of Air Force Materiel Command, left, is greeted by Col. Jason Vap, 804th Test Group commander, during his April 24, 2025, visit to Arnold Air Force Base, Tenn. Also pictured is Chief Master Sgt. Bill Fitch, AFMC Command Chief Master Sergeant, center. Richardson visited Arnold AFB, headquarters of Arnold Engineering Development Complex, headquarters of AEDC, to tour several test facilities, meet with personnel, and receive updates on various programs and projects. (U.S. Air Force photo by Keith Thornburgh) (This image was altered by obscuring badges for security purposes)