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Sonar systems are critical Naval assets that require well-defined performance and lifetime characteristics. These systems are expected to last 15-20 years yet the qualification test methods currently used do not predict the lifetime field performance.

During this Phase II effort, we developed new accelerated life testing (ALT) protocols that incorporates detailed life cycle environmental exposures. These field exposures were modeled and compressed into an ALT test plan that was used to subject sonar hardware to an equivalent aging period of 15-20 years. This was accomplished with lab exposures of only two to three months.

The overall objective of the effort was the establishment of a ALT facility specifically designed to perform ALT testing of marine hardware. An explicit technical objective of the effort was the development of accelerated life testing procedures designed for Twisted Bi-Cone Array (TBCA) sonar hardware.

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