Opened: 1946 by Engineering Research Associates
Other owners: Sperry, UNISYS, Loral
Current life: Lockheed Martin took over the plant in 1996 when it bought Loral Corp.'s electronics and systems-integration business.
Lockheed's peak employment there: 3,000 in the late 1990s
Current employment: 1,000
Facilities: 623,000 square feet of buildings on 50 acres
