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

LOHNER TYP A (111.04) Austria-Hungary

   Possessing fundamentally similar fuselage and tail surfaces to the final Typ AA biplane, the Typ A (111.04) triplane was completed on 23 June 1917. Similarly powered and armed to the preceding Lohner fighters, the Typ A had comparatively high aspect ratio wings braced by a unique canted strut arrangement. Official trials were conducted on 7 July 1917 with mediocre results, and the prototype was returned to the Lohnerwerke for modification. It reappeared in September 1917, and subsequent performance trials proved satisfactory, but the handling characteristics were poor and view from the cockpit was deemed inadequate, with the result that the programme was terminated.

Max speed, 111 mph (178 km/h).
Time to 3,280 ft (1 000 m), 2.8 min.
Range, 221 mis (356 km).
Empty weight, 1,527 lb (692,5 kg).
Loaded weight, 2,041 lb (926 kg).
Span, 28 ft 10 1/2 in (8,80 m).
Length, 20 ft 10 in (6,35 m).
Height, 9 ft 10 1/8 in (3,00 m).
Wing area, 226.05 sqft (21,00 m2).

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

Lohner Dr.I 111.04

  The last of the four Lohner fighters authorized in August 1916 and approved by Flars on 7 May 1917 was Leopold Bauer's triplane design powered by a 185 hp Daimler engine. Known as the Lohner Type A, it received the military designation Dr.I 111.04. Apart from the wings, the airframe was identical to the D.I 111.03. The triplane was completed on 23 June 1917 and the first (maiden?) flight recorded in Kriger's log book occurred on 7 July 1917 when he took the triplane to 4000 meters (13,124 ft) in 20 minutes. It was disassembled on 8 July 1917 for minor structural modification and returned to Aspern in August. On 5 September 1917, Kriger reached 5000 meters (16,405 ft) in 26 minutes, a time that Flars regarded as "mediocre" compared to the 21 minutes achieved by the Aviatik D.I biplane just then entering squadron service. Hauptmann Oskar Fekete and Oberleutnant Franz Muller of Flars, who performed the evaluation, reported totally unsatisfactory flight characteristics and visibility from the cockpit. Trials were continued through October 1917. The Dr.I 111.04 was accepted by Flars in February 1918 and stored at Aspern. Later sent to Flek 6 for disposal, the Dr.I 111.04 triplane was written-off on 11 October 1918.

Lohner Dr.I 111.04 Specifications
Engine: 185 hp Daimler
Wing: Span Upper 8.80 m (28.87 ft)
Span Middle 8.10m (26.57 ft)
Span Lower 8.80m (28.87 ft)
Chord Upper 1.00 m (3.28 ft)
Chord Lower 1.00 m (3.28 ft)
Total Wing Area 24.0 sq m (258 sq ft)
General: Length 6.35 m (20.83 ft)
Height 3.00 m (9.84 ft)
Empty Weight 693 kg (1528 lb)
Loaded Weight 946 kg (2086 lb)
Maximum Speed: 178 km/hr (110.5 mph)
Climb: 1000m (3,281 ft) in 2 min 8 sec
2000m (6,562 ft) in 6 min 5 sec
3000m (9,843 ft) in 11 min
4000m (13,124 ft) in 16 min 7 sec
5000m (16,405 ft) in 26 min

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

10. Flugzeuge der Fabrik Jacob Löhner & Co. Wien, Floridsdorf
111.04 Löhner Dr Dm 185