Arnold Air Force Base

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Music procedures on Air Force installations

The American flag flies atop the pole in front of the Administration and Engineering Building at Arnold Air Force Base, Tenn., headquarters of Arnold Engineering Development Complex. The AEDC Safety team is encouraging team members to familiarize themselves with proper procedures when the music is played across the installation daily at 7:30 a.m. and 4:30 p.m. (U.S. Air Force photo by Keith Thornburgh)

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Complex, Air Force leadership rededicate AEDC

Jay Strobino, field representative for U.S. Sen. Marsha Blackburn, reads a letter from Blackburn congratulating Arnold Engineering Development Complex on reaching its milestone 75th anniversary during the AEDC 75th anniversary open house celebration June 27, 2026, at Arnold Air Force Base, Tenn., headquarters of AEDC. AEDC was originally dedicated by then-President Harry S. Truman on June 25, 1951, in honor of the late Gen. Henry “Hap” Arnold. (U.S. Air Force photo by Keith Thornburgh)

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Complex, Air Force leadership rededicate AEDC

U.S. Rep. Scott DesJarlais speaks prior to the formal rededication of Arnold Engineering Development Complex during the AEDC 75th anniversary open house celebration June 27, 2026, at Arnold Air Force Base, Tenn., headquarters of AEDC. AEDC was originally dedicated by then-President Harry S. Truman on June 25, 1951, in honor of the late Gen. Henry “Hap” Arnold. (U.S. Air Force photo by Keith Thornburgh)

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Complex, Air Force leadership rededicate AEDC

Air Force Test Center Commander and former Arnold Engineering Development Complex commander Maj. Gen. Scott Cain, standing left, and outgoing AEDC Commander Col. Grant Mizell, right, unveil a plaque commemorating the rededication of the Complex during the AEDC 75th anniversary open house celebration June 27, 2026, at Arnold Air Force Base, Tenn., headquarters of AEDC. AEDC was originally dedicated by then-President Harry S. Truman on June 25, 1951, in honor of the late Gen. Henry “Hap” Arnold. (U.S. Air Force photo by Keith Thornburgh)

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Complex, Air Force leadership rededicate AEDC

Arnold Engineering Development Complex Historian Ken Sloat discusses the establishment of AEDC prior to the formal rededication of the Complex during the AEDC 75th anniversary open house celebration June 27, 2026, at Arnold Air Force Base, Tenn., headquarters of AEDC. AEDC was originally dedicated by then-President Harry S. Truman on June 25, 1951, in honor of the late Gen. Henry “Hap” Arnold. (U.S. Air Force photo by Keith Thornburgh)

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AEDC marks 75th anniversary with celebration and ceremony

Arnold Engineering Development Complex Senior Enlisted Leader Chief Master Sgt. Evan McCoy holds the AEDC guidon during the AEDC Change of Command ceremony that took place June 27, 2026, as part of the AEDC 75th anniversary open house celebration at Arnold Air Force Base, Tenn., headquarters of AEDC. Outgoing AEDC Commander Col. Grant Mizell relinquished command of the Complex to incoming Commander Col. Wayne Dirkes. (U.S. Air Force photo by Keith Thornburgh)

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AEDC marks 75th anniversary with celebration and ceremony

Air Force Test Center Commander Maj. Gen. Scott Cain, left, outgoing Arnold Engineering Development Complex Commander Col. Grant Mizell, center, and incoming AEDC Commander Col. Wayne Dirkes salute while the national anthem is performed prior to the AEDC Change of Command ceremony that took place June 27, 2026, as part of the AEDC 75th anniversary open house celebration at Arnold Air Force Base, Tenn., headquarters of AEDC. Outgoing AEDC Commander Col. Grant Mizell relinquished command of the Complex to incoming Commander Col. Wayne Dirkes. (U.S. Air Force photo by Keith Thornburgh)

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AEDC marks 75th anniversary with celebration and ceremony

Airmen, led by 804th Test Group Commander Col. Jack Rhodes, center, stand at attention during the Arnold Engineering Development Complex Change of Command ceremony that took place June 27, 2026, as part of the AEDC 75th anniversary open house celebration at Arnold Air Force Base, Tenn., headquarters of AEDC. Outgoing AEDC Commander Col. Grant Mizell relinquished command of the Complex to incoming Commander Col. Wayne Dirkes. (U.S. Air Force photo by Keith Thornburgh)

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AEDC marks 75th anniversary with celebration and ceremony

The Honor Guard from Robins Air Force Base, Georgia, prepares to present the U.S. and Tennessee state flags during the Arnold Engineering Development Complex Change of Command ceremony that took place June 27, 2026, during the AEDC 75th anniversary open house celebration at Arnold Air Force Base, Tenn., headquarters of AEDC. Outgoing AEDC Commander Col. Grant Mizell relinquished command of the Complex to incoming Commander Col. Wayne Dirkes. (U.S. Air Force photo by Keith Thornburgh)

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AEDC marks 75th anniversary with celebration and ceremony

Lt. Col. Jason Thomas, commander of the 716th Test Squadron, left, and other members of the 716 TS team, discuss aircraft testing models on display 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

Stephen Arnold, 717th Test Squadron technical adviser, right, discusses an engine on display 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 board a bus June 27, 2026, to participate in a base bus tour 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

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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