P.Grosz, G.Haddow, P.Shiemer Austro-Hungarian Army Aircraft of World War One

Holeka Biplane

  The 1 to 12.5 scale model of the reconnaissance biplane, designed by Hauptmann Rudolf Holeka, was built by Oeffag. In December 1917, the model was tested in Professor Knoller's vertical wind tunnel at the Vienna Polytechnic Institute under the supervision of Leutnant Richard Katzmayr to investigate the aerodynamic effects of the unusual fuselage, tail section, and ventral gun position. Despite modification of the model, the tests were unsuccessful and the project was dropped in March 1918.