Radar Bomb Scoring Division

The Radar Bomb Scoring Division was a Strategic Air Command military organization which controlled the RBS units and operations of the 1st Combat Evaluation Group. The division included a maintenance office and as with the preceding 1st Radar Bomb Scoring Group at Carswell AFB, the division had 3 Radar Bomb Scoring Squadrons with RBS detachments at fixed radar stations and at semi-mobile radar stations. The semi-mobile stations called "MDLs (Mobile Duty Locations) were sites set up for SAC special missions [and the] equipment, trailers, books, etc" were stored at Barksdale AFB when not in use. Each squadron manned an RBS Express train, but the squadrons were inactivated in 1966 after Vietnam War deployments had begun. RBS trains were inactivated later in the war after the 1968-9 Project 693 downsized by discharging 1st term SAC airmen up to 11 mos. early. Post-war the annual Combat Skyspot trophy was awarded for the outstanding RBS detachment (e.g., to Ashland Det 7 in 1985).

Operations
The squadrons initially used AN/MSQ-1, AN/MSQ-1, and AN/MSQ-2 automatic tracking radar/computer systems, and bomber crashes during RBS sorties included 2 B-47 bombers at the Bayshore Bomb Scoring Site in 1961. The Reeves AN/MSQ-35 Bomb Scoring Central was developed for the division (the 1st class was in the fall of 1962, and mid-1963 testing was at the White Sands Missile Range.) During the Vietnam War, the Statesboro detachment used a Soviet T2A for training crews to jam the signal, and 3 US bombing systems developed during the war (AN/MSQ-77, AN/TSQ-81, & AN/TSQ-96) were used post-war in the United States by the RBS Division, which replaced them with the c. 1980 solid-state US Dynamics AN/TPQ-43 Bomb Scoring Set (SEEK SCORE) developed from the AN/TPB-1C Course Directing Central.

At the end of the Cold War, most RBS detachments became Formerly Used Defense Sites (e.g., the earlier Milford Radar Bomb Scoring Site in Beaver County, Utah, closed in 1971 and is designated FUDS J08UT0874.) The personnel and the assets of the RBS Division became the 1st Electronic Combat Range Group on 1 July 1989 when the 1CEVG was split and other 1CEVG organizations transferred to SAC headquarters.

806L systems
The Electronic Systems Division 806L "Range Threat" systems for electronic warfare simulation were developed for use by 1CEVG late in the Cold War such as the US Dynamics AN/MST-T1 Miniature-Multiple Threat Emitter Simulator (MUTES), for which the group evaluated the prototype in 1977 (operational in October 1978). Similarly, TLQ-11 jammer improvements were in 1978, and in 1979 1CEVG members completed a prototype study and testing of the new Threat Reaction Analysis Indicator System (TRAINS) for analyzing how aircrews and avionics reacted to ground-based threats.