Aerospace Instrument-Making Annotation << Back Effect of product unification on the operating costs of airborne avionics packages Б.М. Абрамов, В.Н. Сучков, А.В. Евгенов и др. Results of investigations to find effect of avionics package unit unification level on the operating costs during the aircraft life cycle are presented. It is shown that it is necessary in parallel with works directed to increase the system reliability to seek after maximum unification level for the package line replaceable units providing highest economic gain.