CORRELATION OF OPERATIONAL RELIABILITY WITH INHERENT RELIABILITY OF AIRBORNE TACAN EQUIPMENT TECHNICAL DOCUMENTARY REPORT No. ASD-TDR-62-839

摘要

The purpose of this study was to provide a correlation between the operational reliability of airborne electronic equipment and the inherent reliability of the same equipment demonstrated in the manufacturer's plant. The airborne portion of a short range navigation systern known as TACAN was the subject equipment in the study. Operational reliability was determined from results of a controlled field test of TACAN units installed in fighter-interceptor aircraft. Inherent reliability was deter¬mined from results of factory AGREE tests required by contract to demonstrate adherence to a specific numerical reliability requirement. Contributing factors to differences between factory AGREE reliability and field reliability are examined in detail to provide a basis for assessing the application of AGREE procedures as a means for obtaining reliable electronic equipment in the end use environment. Addi-tional aspects investigated were equipment maintainability and availability, failure re¬porting procedures, use of elapsed time indicators, and field resources required for TACAN maintenance.