Abstract: Equipment sustainability is an essential component of its military capability. Equipment individual operational unit sustainability is closely related to the reliability, maintainability, and supportability parameters of the unit. In order to measure equipment individual operational unit sustainability its representative mission model which conforms to system engineering is constructed. Furthermore, equipment individual operational unit mission sustaining requirements are analyzed, and its sustainability parameters are presented. The principles of parameter selection and methods of ascertaining them are synchronously studied. A case of one type of aircraft individual operational unit sustainability parameter analysis is presented and the test data are collected in the process of the test. It is proved that the proposed method can provide theoretical basis and approach support for the equipment logistics support administrative department and equipment development institute to evaluate individual operational unit sustainability, balance equipment reliability, maintainability, supportability characteritics and detailed logistics support system design, and implement equipment operation tests.

Key words: equipment, logistics, reliability, maintainability, measurement, parameter