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AEDC marks 75th anniversary with celebration and ceremony

Attendees line up for one of the base bus tours offered during the Arnold Engineering Development Complex 75th anniversary open house celebration June 27, 2026, at Arnold Air Force Base, Tenn., headquarters of AEDC. The public open house was held to coincide with the original June 25, 1951, dedication of AEDC. Along with bus tours, the event included AEDC history tents, an AEDC rededication ceremony and the AEDC Change of Command ceremony. (U.S. Air Force photo by Keith Thornburgh)

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AEDC marks 75th anniversary with celebration and ceremony

A young attendee watches as robots complete programmed drawings June 27, 2026, during the Arnold Engineering Development Complex 75th anniversary open house event at Arnold Air Force Base, Tenn., headquarters of AEDC. The event included a children’s “Fun Zone” that featured inflatables, trampolines and a petting zoo, as well as a STEM area where attendees could learn about science and technology. (U.S. Air Force photo by Keith Thornburgh)

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AEDC marks 75th anniversary with celebration and ceremony

A young attendee sits down for facepainting June 27, 2026, during the Arnold Engineering Development Complex 75th anniversary open house event at Arnold Air Force Base, Tenn., headquarters of AEDC. The event included a children’s “Fun Zone” that, along with facepainting, featured inflatables, trampolines and a petting zoo. (U.S. Air Force photo by Keith Thornburgh)

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AEDC marks 75th anniversary with celebration and ceremony

Attendees of the Arnold Engineering Development Complex 75th anniversary open house event at Arnold Air Force Base, Tenn., look at the plaque commemorating the June 25, 1951, dedication of AEDC by then-President Harry S. Truman. The public open house was held June 27, 2026, to coincide with the 75th anniversary of the original AEDC dedication. Arnold AFB is the headquarters of AEDC. (U.S. Air Force photo by Keith Thornburgh)

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AEDC marks 75th anniversary with celebration and ceremony

1st Lt. John Harrison, left, and 2nd Lt. Troy Wilson with the Air Force Research Laboratory High Speed Aerodynamics Branch pose for a photo behind a wind tunnel model during the Arnold Engineering Development Complex 75th anniversary open house celebration June 27, 2026, at Arnold Air Force Base, Tenn., headquarters of AEDC. The public open house was held to coincide with the original June 25, 1951, dedication of AEDC. The history and accomplishments of AEDC throughout its first 75 years were showcased during the open house. (U.S. Air Force photo by Keith Thornburgh)

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AEDC marks 75th anniversary with celebration and ceremony

Attendees gets look over some of the items on display in one of the Arnold Engineering Development Complex history tents set up during the AEDC 75th anniversary open house celebration June 27, 2026, at Arnold Air Force Base, Tenn., headquarters of AEDC. The public open house was held to coincide with the original June 25, 1951, dedication of AEDC. (U.S. Air Force photo by Keith Thornburgh)

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AEDC marks 75th anniversary with celebration and ceremony

Attendees gets an up-close look at the Delta TR-201 rocket engine, which was previously tested in Arnold Engineering Development Complex facilities, during the AEDC 75th anniversary open house celebration June 27, 2026, at Arnold Air Force Base, Tenn., headquarters of AEDC. The public open house was held to coincide with the original June 25, 1951, dedication of AEDC. The event featured history tents that provided information on the accomplishments of AEDC throughout its first 75 years. (U.S. Air Force photo by Keith Thornburgh)

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AEDC marks 75th anniversary with celebration and ceremony

An F-15E Strike Eagle flies over Arnold Air Force Base during the Arnold Engineering Development Complex 75th anniversary open house celebration June 27, 2026, at Arnold AFB, headquarters of AEDC. The public open house was held to coincide with the original June 25, 1951, dedication of AEDC. Along with the F-15 flyover, the event included AEDC history tents, base bus tours and the AEDC Change of Command ceremony. (U.S. Air Force photo by Keith Thornburgh)

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AEDC marks 75th anniversary with celebration and ceremony

The Coffee Airfoilers Model RC Club was on hand during the Arnold Engineering Development Complex 75th anniversary open house celebration June 27, 2026, at Arnold Air Force Base, Tenn., to provide remote control plane demonstrations. The public open house was held to coincide with the original June 25, 1951, dedication of AEDC. The event featured a STEM area where attendees could learn about science and technology. (U.S. Air Force photo by Keith Thornburgh)

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AEDC marks 75th anniversary with celebration and ceremony

Members of the Arnold Engineering Development Complex team from the 718th Test Squadron gather for a photo during the Arnold Engineering Development Complex 75th anniversary open house celebration June 27, 2026, at Arnold Air Force Base, Tenn., headquarters of AEDC. The public open house was held to coincide with the original June 25, 1951, dedication of AEDC. The history and accomplishments of AEDC throughout its first 75 years were showcased during the open house. (U.S. Air Force photo by Keith Thornburgh)

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AEDC marks 75th anniversary with celebration and ceremony

Kimberly Heng and J.D. Dill perform the national anthem to officially kick off the Arnold Engineering Development Complex 75th anniversary open house celebration June 27, 2026, at Arnold Air Force Base, Tenn., headquarters of AEDC. The public open house was held to coincide with the original June 25, 1951, dedication of AEDC. Also pictured, from left, are Tullahoma Mayor Lynn Sebourn, AEDC Public Affairs Chief Jason Austin, outgoing AEDC Commander Col. Grant Mizell and AEDC Senior Enlisted Leader Chief Master Sgt. Evan McCoy. (U.S. Air Force photo by Keith Thornburgh)

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AEDC marks 75th anniversary with celebration and ceremony

Sara Jones & the Hightones provide entertainment during the Arnold Engineering Development Complex 75th anniversary open house celebration June 27, 2026, at Arnold Air Force Base, Tenn., headquarters of AEDC. The public open house was held to coincide with the original June 25, 1951, dedication of AEDC. (U.S. Air Force photo by Keith Thornburgh)

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AEDC marks 75th anniversary with celebration and ceremony

Staff from Middle Tennessee State University show off drones made from items such as Legos and pizza boxes during the Arnold Engineering Development Complex 75th anniversary open house celebration June 27, 2026, at Arnold Air Force Base, headquarters of AEDC. The public open house was held to coincide with the original June 25, 1951, dedication of AEDC. The event featured a STEM area where attendees could learn about science and technology. (U.S. Air Force photo by Keith Thornburgh)

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Dirkes takes command of AEDC

Col. Wayne Dirkes speaks following his introduction as the new Arnold Engineering Development Complex commander during a June 27, 2026, Change of Command ceremony at Arnold Air Force Base, Tenn., headquarters of AEDC. The ceremony took place during the AEDC 75th anniversary open house celebration held on the same date at Arnold AFB. Prior to his latest assignment, Dirkes commanded the 704th Test Group, a unit of AEDC headquartered at Holloman Air Force Base, N.M. Dirkes is a command pilot with more than 2,270 flight hours in more than two dozen different aircraft. He is the 34th commander to lead AEDC. (U.S. Air Force photo by Keith Thornburgh)

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Dirkes takes command of AEDC

Col. Wayne Dirkes, second from right, is introduced as the new Arnold Engineering Development Complex commander during a June 27, 2026, Change of Command ceremony at Arnold Air Force Base, Tenn., headquarters of AEDC. The ceremony took place during the AEDC 75th anniversary open house celebration held on the same date at Arnold AFB. Prior to his latest assignment, Dirkes commanded the 704th Test Group, a unit of AEDC headquartered at Holloman Air Force Base, N.M. Also pictured are Air Force Test Center Commander Maj. Gen. Scott Cain, left, outgoing AEDC Commander Col. Grant Mizell, right, and AEDC Senior Enlisted Leader Chief Master Sgt. Evan McCoy. (U.S. Air Force photo by Keith Thornburgh)

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Dirkes takes command of AEDC

Col. Wayne Dirkes, second from right, exchanges salutes with Air Force Test Center Commander Maj. Gen. Scott Cain, left, after accepting the guidon to assume command of Arnold Engineering Development Complex during a June 27, 2026, Change of Command ceremony at Arnold Air Force Base, Tenn., headquarters of AEDC. The ceremony took place during the AEDC 75th anniversary open house celebration held on the same date at Arnold AFB. Prior to his latest assignment, Dirkes commanded the 704th Test Group, a unit of AEDC headquartered at Holloman Air Force Base, N.M. Also pictured are outgoing AEDC Commander Col. Grant Mizell, right, and AEDC Senior Enlisted Leader Chief Master Sgt. Evan McCoy. (U.S. Air Force photo by Keith Thornburgh)

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Dirkes takes command of AEDC

Col. Wayne Dirkes, second from right, accepts the guidon from Air Force Test Center Commander Maj. Gen. Scott Cain, left, to assume command of Arnold Engineering Development Complex during a June 27, 2026, Change of Command ceremony at Arnold Air Force Base, Tenn., headquarters of AEDC. The ceremony took place during the AEDC 75th anniversary open house celebration held on the same date at Arnold AFB. Prior to his latest assignment, Dirkes commanded the 704th Test Group, a unit of AEDC headquartered at Holloman Air Force Base, N.M. Also pictured are outgoing AEDC Commander Col. Grant Mizell, right, and AEDC Senior Enlisted Leader Chief Master Sgt. Evan McCoy. (U.S. Air Force photo by Keith Thornburgh)

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Thomas assumes command of 716th Test Squadron

Lt. Col. Jason Thomas, center, takes the guidon from 804th Test Group Commander Col. Jack Rhodes, left, to assume command of the 716th Test Squadron during a June 10, 2026, Change of Command ceremony at Arnold Air Force Base, Tenn., headquarters of Arnold Engineering Development Complex. Also pictured is outgoing 716 TS commander Lt. Col. Joseph Sabat. (U.S. Air Force photo by Keith Thornburgh)

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Thomas assumes command of 716th Test Squadron

Lt. Col. Jason Thomas addresses those gathered to watch him take command of the 716th Test Squadron during a June 10, 2026, Change of Command ceremony at Arnold Air Force Base, Tenn., headquarters of Arnold Engineering Development Complex. Prior to assuming command of the 716 TS, Thomas served as director of operations of the 46th Test Squadron at Eglin Air Force Base, Florida. (U.S. Air Force photo by Keith Thornburgh)

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Thomas assumes command of 716th Test Squadron

Lt. Col. Jason Thomas (U.S. Air Force photo)

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