A Review and Analysis of the RCA Collision Avoidance System. Phase I.
Final rept. Jul 72-Aug 73,
INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA SCIENCE AND TECHNOLOGY DIV
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The study analyzes two collision avoidance systems CAS using RCA SECANT techniques VECAS designed for high performance aircraft and VECAS-GA designed for low performance aircraft. Both CAS are still undergoing refinement therefore, the results reported here apply only to the specific versions studied. The two CAS use the Air Transport Association ATA collision avoidance logic and were evaluated in the 1971 FAA projection of traffic 800 aircraft in 1982 in the Los Angeles basin. No attempt was made to evaluate the operational suitability of the ATA logic in the projected traffic. The CAS are asynchronous and employ beacon interrogatortransponder techniques, which introduce mutual interference. In the analysis a thrid equipment, the SECANT Proximity Warning Indicator PWI, was modeled but not analyzed to determine levels of interference. In the analysis the equipment mix was assumed to be 7 percent VECAS, 21 percent VECAS-GA, and 72 percent PWI in the most dense region below 10,000 ft altitude.
- Military Aircraft Operations
- Safety Engineering