Very important problem of safe airplane exploitation lies in the fatigue of the airplane structure. The fatigue may cause full growth of the fatigue crack, and then aircraft catastrophe. Idea of the continuous fatigue estimation of the any plane through all the exploitation time (service time) will be presented in this report and was presented on International Aviation Safety Conference IASC - 97 ( Rotterdam 27-29 august) [4]. As well as, the first results obtained on the training jet aircraft.
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