As given in Jane's Land-Based Air Defence 1996–97. Site designation-systems.netArchived 2005-12-10 at the Wayback Machine gives the initial operational capability as August 1959 with the U.S. Army.
As given in Jane's Land-Based Air Defence 1996–97. Site designation-systems.netArchived 2005-12-10 at the Wayback Machine gives the initial operational capability as August 1959 with the U.S. Army.