Federal Aviation Administration, 800 Independence Avenue, S.W., Washington, D.C., 20591

A -- CTAS SOFTWARE 4.2.1 DUE 090195 POC Richard S. Kahn, ASU-350, Contracting Officer at (202) 233-5074 The Center-TRACON Automation System (CTAS) is being developed to provide real-time traffic control assistance in the management of aircraft within or transitioning into the enroute or terminal airspace boundaries. Principally, CTAS shall: (1) generate a schedule of traffic at arrival meter fixes and runway thresholds; (2) provide assistance to the TMC in scheduling aircraft to a gate or runway; (3) develop and display descent advisory data for fix crossing with a fuel efficient descent profile; (4) support TRACON controllers in routing and sequencing aircraft in the terminal area; and (5) support Center and TRACON controllers in merging and establishing departure traffic in the enroute structure. To meet the requirements, CTAS R&D algorithmic software is presently being designed to include the following tools: (1) Traffic Management Advisor (TMA); (2) Descent Advisor (DA); (3) Final Approach Spacing Tool (FAST); and Expedite Departure Path (EDP). The software is in C and UNIX for use on Sun workstations. Each CTAS release includes a tape of the CTAS software, user documentation for supported tools and installation instructions. CTAS release 4.2.1, the current version of CTAS software, includes TMA, which assists with traffic flow management in the Center environment; and Passive FAST, which provides runway assignments and sequence numbers in the TRACON environment.Anyone interested in obtaining a free copy of CTAS software version 4.2.1 must submit a written request, to be received not later than COB on Friday, September 1, 1995, by the Contracting Officer as follows: Richard S. Kahn, ASU-350, Federal Aviation Administration, 800 Independence Avenue, SW, Washington, DC, 20591. The request must state it is for CTAS software version 4.2.1 with the TMA and Passive FAST tools; and it must clearly identify the name, complete address and telephone number of the individual to whom the package is to be sent. Release of the software is contingent on the recipient executing a license agreement that limits the use of the software package. RECIPIENTS OF CTAS SOFTWARE VERSION 4.0.1 WILL BE CONTACTED AUTOMATICALLY AND SHOULD NOT RESPOND TO THIS ANNOUNCEMENT. For further information, call the Contracting Officer, Richard S. Kahn, at (202) 233-5074. (0200)

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