Description: It is rotined in the article, that for maintenance of the capable of working state of armament and military technique of zenithal rocket troops it is necessary to conduct the purchase of Devices Over High-frequencies (OHF of devices). In the conditions of financial limitations to conduct complete replacement of the defective OHF devices there is not possibility, that is why it is suggested to decide this problem gradually, providing the necessary (required) level of battle readiness of armament. Factors which influence on the purchase of OHF of devices are grounded. The method of determination of optimum nomenclature and amount of OHF of devices which can be purchased for present facilities is developed, which is based on the account of indexes of battle readiness of armament and military technique of zenithal rocket troops.
Keywords: zenithal rocket complexes, devices over high-frequencies, criteria of optimality, method of optimization