Northrop Grumman’s plant on Douglas Avenue is one of the largest aerospace plants in the country. Building 902, the larger of two primary buildings, is more than 2,000 feet long, and covers one million square feet. The plant was originally built by Douglas Aircraft in 1942, and it has produced around 12,000 aircraft over the years. Historically, the plant focused primarily on building airplanes for the Navy (while Douglas Aircraft at Long Beach Airport focused on Air Force programs). A major project in recent years has been producing structural assemblies for F/A-18 Navy fighter jets. In addition to aircraft and component production, the facility has been used for a variety of weapons systems, including some nuclear bomb work in the 1950s. After Douglas Aircraft, it was owned by North American Rockwell, then by Northrop, starting in 1978. Today the buildings continue to be used for defense projects, including by Northrop’s Aeronautics Systems division, which occupies dozens of buildings in El Segundo, Redondo Beach, and Palmdale. Northrop was headquartered in Century City until 2010, when its headquarters shifted to suburban Virginia, to be closer to Washington DC.