| Unit Name: | 503d Aircraft Control and Warning Group |
| Dates: | 1949-52 |
| Country: | United States |
| Branch: | United States Air Force |
| Type: | Air Defense Warning and Control |
| Command Structure: | Air Defense Command First Air Force 26th Air Division |
The 503d Aircraft Control and Warning Group (AC&WG) is an inactive United States Air Force unit. Its last assignment was with Air Defense Command (ADC)'s 26th Air Division at Roslyn AFS New York. It was inactivated in 1952.
Activated as an ADC Aircraft Control and Warning Group, forming radar squadrons in the late 1940s and the early 1950s and deploying them around the New York, New Jersey area under First Air Force and the 26th Air Division. On 16 April 1950, the reserve 563d Aircraft Control and Warning Group was activated as a Corollary unit at Roslyn, sharing the 503d's equipment and facilities. The 563d was called to active duty on 2 June 1951 and was inactivated, with its personnel used as fillers for the 503d.
Redesignated 503d Aircraft Control and Warning Group, 6 December 1949
Inactivated on 6 February 1952
Disbanded on 21 September 1984.
Mitchel Field, New York, 30 April 1948 – 1 January 1951
Highlands AFS, New Jersey, 1 June 1948 – 6 February 1952
Fort George G. Meade, Maryland, 1 January 1951 – 6 February 1952
Mud Pond, Pennsylvania, 1 January 1951 – 6 February 1952
Santini, New York, 1 January 1951 – 6 February 1952
Palermo AFS, New Jersey, 1 January 1951 – 6 February 1952
Cape Charles AFS, Virginia, 1 January 1951 – 6 February 1952
Connellsville, Pennsylvania, 1 January 1951 – 6 February 1952
Camp Hero, New York, 1 June 1948 – 6 December 1949