In 1893 the maiden flight of the glider Normalsegelapparat of Otto Lilienthal took place. One year later the serial production started and at least eight gliders were sold for 500 Mark. Today four are remaining. One of them belongs to the Deutsches Museum and it was flown by Otto Lilienthal himself. The present original fragments from the glider are in a poor condition state. The aim of this study is to visualize by Computed Tomography voids and deterioration of the inner structure of wooden fragments. Based on this scientific investigation the stability of the glider’s structure will be estimated and a concept for conservation treatment and exhibition will be developed. This interdisciplinary project was a collaboration between Deutsches Museum, Technical University of Munich, Airbus Materials X, Airbus Helicopters, and TESTIA. This paper will present the results from two fragments.     «

In 1893 the maiden flight of the glider Normalsegelapparat of Otto Lilienthal took place. One year later the serial production started and at least eight gliders were sold for 500 Mark. Today four are remaining. One of them belongs to the Deutsches Museum and it was flown by Otto Lilienthal himself. The present original fragments from the glider are in a poor condition state. The aim of this study is to visualize by Computed Tomography voids and deterioration of the inner structure of wooden fra...     »