THE RELIABILITY DEMONSTRATOR,
REDSTONE ARSENAL HUNTSVILLE ALA
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A reliability demonstrator, simulating a complex system, consists of a number of disks that rotate on a common axis. Each disk bears on its circumference a bad spot covering one percent of the circumference, indicating a reliability of 99 percent. This is a means of demonstrating that the overall reliability of a complex automatic system equals the product of the reliabilities of the individual components.