W.Green, G.Swanborough The Complete Book of Fighters

OEFFAG TYPE CF (50.14) Austria-Hungary

   Late in 1917, the Oesterreichische Flugzeugfabrik (Oeffag) of Wiener Neustadt initiated the design of its first and, in the event, only single-seat fighter, the Type CF. An equi-span triplane of wooden construction with I-type interplane struts, the Type CF was powered by a 225 hp Austro-Daimler six-cylinder water-cooled engine, intended armament comprising two synchronised 8-mm Schwarzlose machine guns. Flight testing began in May 1918, but the triplane was already outmoded by contemporary biplane development, the Type CF being viewed by the K.u.K.Luftfahrttruppen as retrogressive. Nevertheless, the prototype appeared in the Fighter Evaluation held at Aspern in July 1918. In the meantime, the two-piece upper wing had given place to a one-piece wing with ailerons of increased area, a 200 hp Austro-Daimler engine having supplanted the more powerful unit. Too heavy and unwieldy, the Type CF aroused no enthusiasm, having neither performance nor manoeuvrability to commend it, and further development was abandoned.

Loaded weight, 2,138 lb (970 kg).
Span, 27 ft 6 2/3 in (8,40 m).
Length, 20 ft 11 9/10 in (6,40 m).
Height, 9 ft 9 1/3 in (2,98 m).
Wing area, 256.19 sq ft (23,80 m2).

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

Oeffag 50.14

  The construction of the Oeffag 50.14 (Type CF) triplane fighter was underway in late 1917 and a 225 hp Daimler engine was installed in the completed airframe in April 1918. During flight testing, about which information is sparse, the two-piece upper wing was replaced by a one-piece wing and the elevator area was increased. The 50.14, now powered by a 200 hp Daimler engine, appeared at the Fighter Evaluation at Aspern in July 1918. Having neither performance nor maneuverability to commend it, the large triplane aroused no enthusiasm and the project was dropped.

Oeffag 50.14 Specifications
Engine: 225 hp Daimler
Wing: Span Upper 8.40 m (27.56 ft)
Span Middle 8.40 m (27.56 ft)
Span Lower 8.40 m (27.56 ft)
Chord Upper
Chord Middle 1.20 m (3.94 ft)
Chord Lower 0.90 m (2.95 ft)
Dihedral Upper 0 deg
Dihedral Middle 1 deg
Dihedral Lower 1.33 deg
Sweepback Upper 0 deg
Sweepback Middle 0 deg
Sweepback Lower 0 deg
Gap Upper 1.130 m (3.71 ft)
Gap Lower 0.850 m (2.79 ft)
Stagger Upper 0.479 m (1.57 ft)
Stagger Lower 0.155 m (0.51 ft)
Total Wing Area 23.8 sq m (256 sq ft)
General: Length 6.40 m (21.00 ft)
Height 2.98 m (9.78 ft)
Track 1.55m (5.09 ft)
Loaded Weight 970 kg (2139 lb)

E.Hauke, W.Schroeder, B.Totschinger Die Flugzeuge der k.u.k. Luftfahrtruppe und Seeflieger 1914-1918

50. Flugzeuge der Österreichischen Flugzeugfabrik A.G. (Oeffag) Wiener Neustadt
50.14 Oeffag Dr Einsitzer Dm 185