Calculation Method Modification of Spare Parts Quan-tity to Restore Operability of Weapon Systems

The article proposes a methodical approach to calculating the number of spare parts for weapon systems (WS) combat damage elimination and operability restoration based on criteria of minimization of spare parts cost, meeting the requirements of the spare parts, tools, supplies and materials, as well as timeliness of damaged WSs repair. The main points of the methodological approach (mathematical formalization of the task, basic calculation ratios, stages and order of calculation of spare parts stocks) are represented with a simplified scheme of the calculation of spare parts to ensure WS combat damage elimination and operability restoration. Probability of sufficiency and developed mathematical model for its calculation are used as a sufficiency indicator of spare parts to ensure WS combat damage elimination and operability restoration.