A replica of the world’s first series aircraft passed its test in the wind tunnel, where scientists from the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) have now demonstrated the aerodynamic quality of the design by the aviation pioneer Otto Lilienthal. Lilienthal's construction had to prove itself during flow tests within the DNW wind tunnel in Marknesse (Netherlands). Additional tests in Göttingen will explore the role of the glider's manoeuvrability on Lilienthal's fatal crash.