Arnold Air Force Base

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Arnold Air Force Base
Near Tullahoma, Tennessee in United States of America
Aerial view of Arnold Air Force Base in 2005
Arnold AFB Shown in United States
Coordinates	35°23′33″N 086°05′09″W / 35.39250°N 86.08583°W / 35.39250; -86.08583
Type	US Air Force base
Site information
Owner	Department of Defense
Operator	US Air Force
Controlled by	Air Force Materiel Command
Condition	Operational
Website	www.arnold.af.mil
Site history
Built	1950 (1950)
In use	1950 – present
Garrison information
Current commander	Colonel Jeffrey T. Geraghty
Garrison	Arnold Engineering Development Center
Airfield information
Identifiers	ICAO: KAYX, FAA LID: AYX
Elevation	325 metres (1,066 ft) AMSL
Runways Direction Length and surface 03/21 1,829 metres (6,001 ft) asphalt

Arnold Air Force Base (Arnold AFB) (ICAO: KAYX, FAA LID: AYX) is a United States Air Force base located in Coffee and Franklin counties, Tennessee, adjacent to the city of Tullahoma.^[1] It is named for General Henry "Hap" Arnold, the father of the U.S. Air Force.

The airfield was closed in 2009 but has since reopened. The first landing since 2009 took place in May 2023. Army aviation assets (helicopters) continue to utilize Arnold as part of missions supporting Fort Campbell, Kentucky or the Tennessee Army National Guard.

The base is home to the Arnold Engineering Development Complex (AEDC), the most advanced and largest complex of flight simulation test facilities in the world. The center operates 58 aerodynamic and propulsion wind tunnels, rocket and turbine engine test cells, space environmental chambers, arc heaters, ballistic ranges and other specialized units. AEDC is an Air Force Test Center organization.^[2]

The commander of Arnold Engineering Development Center is Col. Scott A. Cain,^[3] and Mark A. Mehalic is the executive director.^[4]