RT Book, Whole DB /z-wcorg/ DS http://worldcat.org ID 227316091 LA English T1 The operational readiness of a system subject to a mixed maintenance policy. A1 Kaufman, N., TRW SPACE TECHNOLOGY LABS REDONDO BEACH CALIF., PB Defense Technical Information Center PP Ft. Belvoir YR 1963 AB This report presents a model of a system subject to a mixed maintanance policy and derives equa tions which can be used to produce a numerical value for the availability of such a system. An example of a system subject to such a mixed main tenance policy is the Inertial Guidance System of the Atlas Weapon, which is monitored continuously at a given test level and checked out periodical ly at a higher test level. In addition, a dis cussion of the data requirements necessary to estimate the parameters of the model is presented. (Author).