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

Oeffag 50.01

  The Oeffag 50.01 experimental biplane was designed and built at the Daimler engine factory in Wiener-Neustadt while the Oeffag company was in the process of being established. The structural drawings were completed in January 1915 under the supervision of Ingenieur Eduard Zaparka and Karl Ockermuller. When the prototype, powered by a 160 hp Daimler engine, was first flown in early 1915, the I-strutted wing cellule braced with only a single set of cables, was reported prone to deformation. Oeffag data sheets give the completion date as September 1915, but it is believed this date refers to a final modification of the 50.01, possibly fitted with conventional struts.

Engine: 160 hp Daimler
Wing: Span Upper 14.58 m (47.83 ft)
Span Lower 13.90 m (45.60 ft)
Chord Upper 2.25 m (7.38 ft)
Chord Lower 2.00 m (6.56 ft)
Dihedral Upper 2 deg
Dihedral Lower 2 deg
Sweepback Upper 9 deg
Sweepback Lower 9 deg
Gap 1.92 m (6.30 ft)
Stagger 0.17 m (0.56 ft)
Total Wing Area 54 sq m (581 sq ft)
General: Length 8.40 m (27.56 ft)
Height 3.27 m (10.73 ft)
Loaded Weight 1350 kg (2977 lb)
Maximum Speed: 120 km/hr (74.5 mph)