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The CAA is sure that this system, combined with blind landing devices at the airports, will make U.S. flying enormously safer and more regular. But CAA considers the system merely "transitional." The ultimate control system, which will become necessary as air traffic gets denser, will keep the planes moving like railroad trains on a "block system." Each plane will keep to a well-marked "track" in space. Signals on the instrument board will tell the pilot whether the block ahead is clear and whether the next plane behind him is treading on his tail.
Not all elements of the final system are even designed as yet, but CAA is sure they will all be ready and in use by 1963. Total cost for theoretically near-total air safety: $1,100,000,000.