On a mathematical model for assessing reliability and ensuring flight safety when operating an unmanned aerial vehicle

The theoretical and applied aspects of computer modeling are described, taking into account modern methods of constructing information, measurement and control systems (IIAs) of aircraft during their operation. The LA and IIiUS facilities are high‑tech and complex technical systems (CTC) that require combined approaches to their assessment. The ways of forming the main blocks of information models for obtaining the main indicators of aircraft reliability and safety are shown. Formulas are given for the use of adequate information technology processes and methods for assessing the technical level of created samples of both single‑level and multi‑level hierarchical systems in combination with known methods, operating algorithms and software, which are more complete in information content with probabilistic characteristics. The theoretical aspects of the work and the formulations are supported by a computational experiment, during which the aircraft cargo was delivered to a given area. The results of the work can be useful to developers of unmanned aircraft systems and specialists in the field of designing CTC facilities when predicting their technical condition with an assessment of functional safety and ensuring the desired efficiency.