Aerospace Instrument-Making Annotation << Back METHOD OF EVALUATING THE CONDITION OF MATERIALS DURING CLIMATIC AGING A.B. Laptev, E.V. Nicolaev, D.A. Laptev, A.A. Skirta The analysis of the current state the climatic tests of materials. It is shown that the determination the climatic performance of the products in accordance with current regulatory documentation unreasonably expensive, long-term and does not allow with sufficient accuracy to predict the resource components and assemblies of the aircraft. In this article with the use of regression models the data were processed by a three-year exposure of materials in different climatic zones. The obtained regression model the persistence properties of polymer composite materials, with a margin of error not more 11 %. Key words: environmental testing, prediction of properties, resource, Polymer composite materials. Contacts: E-mail: laptev@bk.ru Pp. 20-29.