SERVICE LIFE EXTENSION POSSIBILITIES BY FATIGUE TESTS ON USED GLIDERS

Authors

  • Jozsef Gedeon
  • G. Kalman

Keywords:

Design, Training, Safety

Abstract

After attaining their approved service life linits, five R-26/S Gobe two-seaters have been fatigue tested in order to get data for an official service life extension. Using statistical data from ten years of intensive flying, the nornal flight program underlying the damage calculations has been revised. The tests have been run on a hydraulic machine using a home-made load distributing lever systen. Damage calculations included deternination of an effective stress coefficient and of the nominal safe life, respectively. As a result of the tests, a proposal to extend the approved service life of the type could be made.

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Issue

Vol. 4 No. 4 (1977)

Section

Articles

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