General scientific-methodical statements on assessment technical and economic efficiency of works directed for extension of surface-to-air missiles` (SAMs) assigned measures are formulated. Characteristic of costs connected with SAM assigned measures` extension is given. Equations for comparative assessment of the costs connected with works on SAM assigned measures` extension, and ones needed for purchasing new SAMs are considered. Graphs which allow assessing assumed values of assigned measures` increasing based on available economic resources, and also graphs characterized duration of extending SAMs` lifetime as the function of preliminary stated SAM life cycle are shown.
Ключові слова: assumed values of assigned measures` increasing, duration of extending SAMs` lifetime, technical and economic assessment, works concerned with assigned parameters` extension