646th Radar Squadron

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646th Radar Squadron
646th Radar Squadron - Emblem.png
Emblem of the 646th Radar Squadron
Active1948 June 1-1966 July 1
CountryUnited States
Branch United States Air Force
TypeGeneral Radar Surveillance Squadron
assigned to:
1948 June 1 -503d Aircraft Warning Group
1949 December 6 - 503d Aircraft Control and Warning Group
1952 February 6 - 26th Air Division
1953 February 16 - 4709th Defense Wing
1956 October 18 - 4621st Air Defense Wing
1957 January 8 - New York Air Defense Sector
1966 April 1 - 21st Air Division

The 646th Aircraft Control and Warning Squadron was the operational USAF unit of Highlands Air Force Station. The unit manned the Texas Tower 4, an offshore radar annex from 1958 until it collapsed into the Atlantic Ocean on 15 January 1961, killing 28 people. The squadron was activated on 1 June 1948, and renamed to the 646th Radar Squadron (SAGE) on 1 October 1958.