Aeronautics: Mid-Air Payoff

By early 1967, U.S. commercial aviation experts had spent a decade vainly trying to develop a highly reliable midair collision-avoidance system (CAS). The number of "near misses" by U.S. aircraft had risen to more than 400 a year; the air traffic problem would soon be compounded by the arrival of jumbo jets and the SST. Alarmed, the Air Transport Association in January started an urgent program joining six avionics manufacturers* in the search for a solution. Last week the ATA triumphantly anounced the payoff; the blueprint for a CAS that could make the skies as safe as a sailing pond.


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