The problems of criteria for the objects state reasonable choice, taking into account the external and internal disturbances action, are considered. The main problems of the functioning of UAV-type objects are given. Damages classifications and such damages manifestations are considered. Aircraft and rotary type UAVs mathematical models have been developed. Damage indicators have been studied; the most significant indicators have been selected. Approaches to the reliability indicators, risks, residual service life assessment based on forecasting methods within the framework of data mining approaches are proposed. Alternative approaches to assessing reliability by various indicators are shown.
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