This assistance included the installation of a 9020D and 9020E and associated equipment at a cost of $29m (out of a total contract cost of $272m). Under the terms of the treaty the FAA would provide technical assistance to improve the Iranian National Airspace System. On Ja treaty “IRAN - Aviation: Technical Assistance” was signed between the FAA and the Civil Aviation Organization of Iran. IBM 9020 system at the London Air Traffic Control Centre. In addition to the 21 ARTCCs there were four sites with variously configured non-operational systems: 9020A, 9020D and 9020E support and development systems at the FAA's NAFEC 9020A and 9020E training systems at the FAA Academy a simplex 9020D support system co-located with the CAA's operational triplex 9020D London system, and a 9020A at Raytheon for testing their display system. centre had a 9020D "Triplex" system with six IBM S/360s (three S/360-65s and three S/360-50s). Not all FAA ARTCCs, of which there were 20, had the maximum configuration. In the event, only the 9020A was delivered, plus the later 9020D with a 650 FP capacity.Įach FAA ARTCC had a System Maintenance Monitor Console (SMMC) that brought together the status indications of the installed 9020 system(s) as well as related components, such as environmental systems and communications links.Ī maximum configuration CCC/DCC complex contained 12 IBM S/360 mainframes. Initially three 9020 CCC variants were proposed, with different flight plan (FP) capacities: 9020A max 3B max 200 FPs and 9020C max 100 FPs. The five ARTCCs that exceeded this requirement were equipped with the IBM DCC which could drive up to 90 PVDs. The Raytheon CDC could drive a maximum of 60 PVDs. and the Plessey Processed Radar Display System (PRDS) in the U.K. The non-IBM display complex was the Raytheon 730 Computer Display Channel (CDC) in the U.S. The 9020A and 9020D CCCs carried out flight and radar data processing but needed an attached display complex to provide a plan view display (PVD) to the air traffic controllers. All the 9020A CCCs were attached to a non-IBM display complex, while the 9020D CCCs could be attached to either a non-IBM display complex or to the IBM 9020E DCC. There were three operational variants of the 9020 system: 9020A CCC (Central Computer Complex) 9020D CCC and 9020E DCC (Display Channel Complex). This schematic shows the maximum configuration, with the mainframe boxes highlighted in blue. Not all FAA ARTCCs (Air Route Traffic Control Centers), of which there were 20, had the maximum configuration. A maximum configuration CCC/DCC complex contained 12 IBM S/360 mainframes.
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