Traffic Alert and Collision Avoidance System (TCAS-III)
Abstract:
The Task-1 contract on TCAS-II produced a system concept and a Design Specification that show the 743 Aircraft L.A. Basin Model with peak densities well in excess of 0.4 aircraft per square nautical mile can be met. This Task-2 contract is for the design, construction, and testing of two Enhanced TCAS-II now called TCAS III Engineering Units. This report contains a description of the TCAS III engineering model and results from various flight tests of the system. System 1 has been installed on the FAAs 727 since 1983. Testing shows that angular accuracies in the order of 1 to 2 degrees are feasible and that Horizontal Resolution Advisories can be given on intruders. System 2 has been delivered to the FAA Technical Center and installed on a Convair 580. Both systems will continue to fly as test beds for TCAS III.