Back-Up Interceptor Control

BUIC began with deployment of General Electric AN/GPA-37 Course Directing Groups to several Long Range Radar stations.

[13] BUIC II was used to command and control sites using the Burroughs AN/GSA-51 Radar Course Directing Group.

[14] The AN/GYK-19[15] (initially AN/GSA-51A) was an upgraded version of the BUIC II system designated AN/GSA-51A[16] and required a larger building than the AN/GSA-51.

[18][19] In Canada the BUIC site at Senneterre was shut down, but St Margarets remained open.

The AN/FYQ-47 Common Digitizer for the Joint Surveillance System, and the Radar Video Data Processor (RVDP) was a combined system for the Air Force and Federal Aviation Administration (FAA), it replaced the SAGE Burroughs AN/FST-2 Coordinate Data Transmitting Sets.

BUIC III at North Turro AFS shortly before shutdown December 1973. Background l->r Cabinets Memory 5&6, Memory 7&8, Computer 1, Computer 2. Foreground: Status Display Console, Teletype. Cabinets are about 3' wide, 3' deep, & 7' high