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Rome Laboratory is the US "Air Force 'superlab' for command, control, and communications" research and development and is responsible for planning and executing the USAF science and technology program.
Ground-directed bombing (GDB) is a military tactic for airstrikes by ground-attack aircraft, strategic bombers, and other equipped air vehicles under command guidance from aviation ground support equipment and/or ground personnel. Often used in poor weather and at night, the tactic was superseded by an airborne computer predicting unguided bomb impact from data provided by precision avionics Equipment for radar GDB generally included a combination ground radar/computer/communication system and aircraft avionics for processing radioed commands.
The 1st Combat Evaluation Group was a Strategic Air Command (SAC) unit. It was formed on 1 August 1961 to merge the 3908th Strategic Standardization Group for SAC aircrew evaluation with the 1st Radar Bomb Scoring Group that had originated from the 263rd Army Air Force Base Unit which transferred from 15th AF to directly under Strategic Air Command c. 1946. The 1CEVG formed after SAC switched to low-level tactics to counter Soviet surface-to-air missiles and SAC had "developed a Radar Bomb Scoring field kit for use in NIKE Systems" in early 1960 for scoring SAC training missions against US Hercules SAM sites. The 1CEVG headquarters included an Office of History and a "standardization and evaluation school" for command examiners.
The Reeves AN/MSQ-77 Bomb Directing Central, Radar was a United States Air Force automatic tracking radar/computer system for command guidance of aircraft. It was often used during Vietnam War bomb runs at nighttime and during bad weather. Developed from the Reeves AN/MSQ-35, the AN/MSQ-77 reversed the process of Radar Bomb Scoring by continually estimating the bomb impact point before bomb release with a vacuum tube ballistic computer. Unlike "Course Directing Centrals" which guided aircraft to a predetermined release point, the AN/MSQ-77 algorithm continuously predicted bomb impact points during the radar track while the AN/MSQ-77's control commands adjusted the aircraft course. A close air support regulation prohibited AN/MSQ-77 Combat Skyspot bombing within 1,000 yd (910 m) of friendly forces unless authorized by a Forward Air Controller, and "on several occasions" strikes were as close as 273 yd (250 m).
Radar Bomb Scoring is a combat aviation ground support operation used to evaluate Cold War aircrews' effectiveness with simulated unguided bomb drops near radar stations of the United States Navy, the USAF Strategic Air Command, and Army Project Nike units. USAF RBS used various ground radar, computers, and other electronic equipment such as jammers to disrupt operations of the bomber's radar navigator, AAA/SAM simulators to require countermeasures from the bomber, and Radar Bomb Scoring Centrals for estimating accuracy of simulated bombings. Scores for accuracy and electronic warfare effectiveness were transmitted from radar sites such as those at Strategic Range Training Complexes.
RBS Express railroad trains were 3 mobile United States Air Force radar stations for 1CEVG Radar Bomb Scoring (RBS) of Strategic Air Command bomber crews beginning in March 1961. Electronic equipment included the "MSQ-39, TLQ-11, MPS-9, and the IFF/SIF for the MSQ-39" along with support railcars, and the trains were temporarily used at various rail sites with the radar antennas emplaced using hoists built onto flatcars. Pulled by a "contracted locomotive" that left the train at the site, and a North American B-25 Mitchell was used for calibration of the radar station.
Lima Site 85 was a clandestine military installation in the Royal Kingdom of Laos guarded by the Hmong "Secret Army", the Central Intelligence Agency, and the United States Air Force used for Vietnam War covert operations against communist targets in ostensibly neutral Laos under attack by the Vietnam People's Army. Initially created for a CIA command post to support a local stronghold, the site was expanded with a 1966 TACAN area excavated on the mountaintop where a 1967 command guidance radar was added for Commando Club bombing of northern areas of North Vietnam. The site ended operations with the Battle of Lima Site 85 when most of the U.S. technicians on the mountaintop were killed, including CMSgt Richard Etchberger. For his heroism and sacrifice, Etchberger received the Air Force Cross posthumously. The operation remained classified, however, and the existence of the award was not publicly acknowledged until 1998. After the declassification of LS 85 and a reevaluation of his actions, Etchberger was awarded the Medal of Honor in 2010.
Combat Skyspot was the ground-directed bombing (GDB) operation of the Vietnam War by the United States Air Force using Bomb Directing Centrals and by the United States Marine Corps using Course Directing Centrals. Combat Skyspot's command guidance of B-52s and tactical fighters and bombers—"chiefly flown by F-100's"—at night and poor weather was used for aerial bombing of strategic, close air support, interdiction, and other targets. Using a combination radar/computer/communications system at operating location in Southeast Asia, a typical bombing mission had an air command post turn over control of the mission to the radar station, and the station provided bomb run corrections and designated when to release bombs.
Reeves Instrument Corporation (RICO) was a Cold War manufacturer of computer and radar systems for the United States. The corporation was the Project Cyclone laboratory operator for simulation of guided missiles, and RICO developed several Strategic Air Command combination (radar/computer/communications) systems.
The AN/MPQ-2 Close Cooperation Control Unit was a truck-mounted pautomatic tracking radar/computer/communication system for aircraft command guidance, e.g., missile tracking, and for Radar Bomb Scoring. It was introduced shortly after the end of World War II. For ground directed bombing (GDB), an operator would manually plot a target on the "Blind Bombing Plotting Sheet", then use the manual "E6B computer and bombing tables" to plot the release point for striking the target, after which a radar operator used the AN/MPQ-2 to acquire a track of the bomber near an initial point during which allowed ground control of the bomb run to the release point.
The Burroughs AN/FST-2 Coordinate Data Transmitting Set (CDTS) was a Cold War military computer system at SAGE radar stations for displaying aircraft tracks and converting them for digital transmission to IBM AN/FSQ-7 Combat Direction Centrals at air defense data centers. Developed by the Great Valley Research Laboratory of the Burroughs Corporation as part of the Electronic Systems Division's 416L network of computers, 134 CDTSs were deployed. Each was to "process the raw radar data, antenna position information, and IFF data, and send it over voice grade toll phone lines" at ~1200 baud with 1/4 mile precision. The transmissions were received as "Long Range Radar Input" at SAGE Direction Centers, which performed the aircraft control and warning operations and provided command information to Command Centers which forwarded data to the NORAD command center in Colorado. The AN/FST-2A included 2 vacuum tube computers and accepted 14 input signals.
The Western Electric M-33 Antiaircraft Fire Control System was an X-Band "Gunfire Control Radar", for aiming antiaircraft artillery by computer control. Developed for mobility via 3 trailers, the "M-33 system could compute, for the 90-mm. and 120-mm. guns, firing data for targets with speeds up to 1,000 mph", and for targets at 120,000 yards had similar gun laying accuracy as "SCR-584 type radars" at 70,000 yards. The system included a telescopic "target selector" on a tripod near the guns for additional measurement of aircraft "azimuth and elevation data [to] be transmitted to the computer and utilized as gun directing data."
Matador Automatic Radar Control (MARC) was a command guidance system for the Martin MGM-1 Matador ground launched cruise missile that used combination radar/computer/communication centrals for ground-directed bombing. As for the earlier ground central used with the X-10 aircraft,* MARC had an "Air Link" from the ground for control and an airborne AN/APW-11A radar transponder on the missile for ranging. A series of "MSQ sites". each with a mobile AN/MSQ-1A central in 3 vans had an automatic tracking radar to geolocate the Matador up to ~600 nmi. MARC provided command guidance during the "mid-course phase" after Matador/MARC contact was established following the missile launch off the Zero Length Launcher and until an MSQ transmitted the dive ("dump") command to start the flight path toward the target. Originating in the Caltech/Martin "ZEL Project" and developed as part of weapon system "Project MX 771" at the "Air Force Missile Test Center, Cocoa, Florida"; MARC had accuracy at "crossover into enemy territory" of ~500 ft (150 m) and—at an AN/MSQ-1A range of 165 nautical miles —a CEP of 2,700 ft (820 m).
The Reeves AN/MSQ-51 Aerial Target Control Central (ATCC) was a combination radar/computer/communications system developed 1961-3 for United States Navy "aerial target out-of-sight control". In addition to the "Target Control System AN/SRW-4D" with radios and "Antenna Assemblies for Target Control and Communications ", the ATCC included acquisition/surveillance and tracking radars, a Mark X IFF/SIF, and an analog computer. The ATCC's automatic tracking radar was derived from the Western Electric M-33 gun laying radar and could process double-pulse 9340-9370 MHz beacon returns from transponders up to 400,000 yd away from the AN/MSQ-51 transmitting 9215-9285 MHz radar pulses. If an ATCC was equipped with a "Telemetry Receiving Station", IRIG channels 5-14 could also be received from QF-9G and Q-2C unmanned aerial vehicles. Other ATCC-controlled drones included the QF-9F, KDA-1, KDA-4, KDB-1 and KD2R-5. For "RF communications " to command the drone was a "Collins Radio Co. Model 618T-3" Single Sideband Transceiver (SST) with Control Unit 714E-2 for 28,000 channels. The 1000 watt voice radio system had 2 UHF AN/GRC-27 sets "with Control-Indicator 6-806/GR" for 1750 channels
The Statesboro Bomb Scoring Site was a Strategic Air Command (SAC) Radar Bomb Scoring AUTOTRACK radar station. It was Formerly Used Defense Site I04GA0575. Detachment 3 of the 10th Radar Bomb Scoring Squadron had begun "Statesboro Bomb Plot" operations by June 1963.
The Interior Radar Bomb Scoring Site opened in August 1960 on Hurley Butte, adjacent to the Pine Ridge Indian Reservation and a few miles from Interior, South Dakota. The Interior RBSS is a Formerly Used Defense Site, that closed in 1968.
The 3903rd Radar Bomb Scoring Group was a military evaluation unit under direct command of Strategic Air Command (SAC) headquarters for scoring simulated bomb runs using automatic tracking radar stations. Initially an Army Air Forces Base Unit (AAFBU) and then a squadron, the 3903rd RBS Group was personnel, assets, and detachments were redesignated the 1st Radar Bomb Scoring Group and then the 1CEVG Radar Bomb Scoring Division when the RBS Group merged with the 3908th Strategic Standardization Group in 1961, the year RBS Express trains began to be used for low-altitude Boeing B-52 Stratofortress operations..
The Reeves AN/TSQ-96 Bomb Directing Central was an automatic tracking radar/computer/communications system. The United States Air Force used it from the 1960s, including during the Vietnam War.
The Reeves AN/MSQ-1 Close Support Control Set produced by Reeves Instrument Corporation was a trailer-mounted combination radar/computer/communication developed under a Rome Air Development Center program office for Cold War command guidance of manned aircraft Developed for Korean War ground-directed bombing, one detachment of the 3903rd Radar Bomb Scoring Squadron bombed itself with an MSQ-1 because it mistakenly used procedures for the earlier SCR-584/OA-294 system The MSQ-1 was subsequently used for nuclear testing during Operation Teapot, and for aircraft tests such as for "MSQ-1 controlled pinpoint photography" in 1954.
The General Electric AN/TPQ-1O Course Directing Central was a light-weight, two-unit, helicopter transportable, ground based bombing system developed for use by the United States Marine Corps to provide highly accurate, day/night all weather close air support. This self-contained system was designed to guide an aircraft, equipped with the proper control equipment, to a release point for accurate all-weather delivery of ordnance and supplies to a preselected target. The AN/TPQ-10 and its operators were known as an ‘’Air Support Radar Team’’ (ASRT) and were employed by the Marine Air Support Squadrons within the Aviation Combat Element.
References
- 1 2 MIL-HDBK-162A (Radar.Tpub.com transcription). United States Air Force. 15 December 1965. p. 1. Retrieved 2012-10-21.
- ↑ LOGSA. "Control-Monitor Group". Radar.tpub.com. Retrieved 2012-10-26.
- 1 2 3 AN/MSQ-35 Bomb Scoring Central, Radar: Volume 1 Section 1 (Radar.TPub.com transcription). United States Air Force. 15 December 1965. p. 2. Retrieved 2012-10-24.NOTE: Page 3 of this reference needs identified for the remainder of the tracking radar specifications.
- ↑ "Geological and Geophysical data of field activity D-4-66-SC in San Clemente Island, CA from 07/30/1966 to 08/09/1966". Walrus.wr.usgs.gov. 1966-07-30. Retrieved 2012-10-26.
- ↑ "TogetherWeServed - CMSgt Don Skinner". Airforce.togetherweserved.com. 2009-10-06. Retrieved 2012-10-26.
- ↑ AN/MSQ-35… (Report). Dec 1965. Archived from the original (Final engineering rept.) on February 19, 2015. Retrieved 2012-07-06.
- ↑ "combatevaluationgroup : Message: Re: [Combat Evaluation Group] 10th, 11th, 12th RBS DET #'s/LOCATIONS". groups.yahoo.com. Retrieved 2012-10-26.
- ↑ "combatevaluationgroup : Message: Re: Havre Bomb Plot Nostalgia". groups.yahoo.com. Retrieved 2012-10-26.
- ↑ "Яндекс". 100thamms.com. Retrieved 2012-10-26.
- ↑ "AN/MSQ-35 RADAR BOMB SCORING CENTRAL". Oai.dtic.mil. Archived from the original on February 19, 2015. Retrieved 2012-10-26.
- ↑ AN/MSQ-35 RADAR BOMB SCORING CENTRAL. Defense Technical Information Center. 1965.