The reference for locomotives and railcars
Prussian T 141
German Reichsbahn class 935-12
Germany | 1918 | 768 produced
93 855 in May 1968 in Probstzella
93 855 in May 1968 in Probstzella
Karl-Friedrich Seitz

The T 141 was developed from the T 14 in order to eliminate the greatest weaknesses of this basically well-designed tank locomotive. It was built in larger numbers than its predecessor and after the founding of the Reichsbahn it was also procured by the Prussian directorates. In addition, the Württemberg State Railways put a larger number of these engines into service as T 14 to replace locomotives lost in World War I. Its power was sufficient to tow 700 tonnes on the flat at a maximum speed of 65 km/h. 530 tonnes could still be towed at 30 km/h on a gradient of ine percent.

The biggest point of criticism of the T 14 was the high axle load of the leading axle, on the basis of which one wanted to distribute the load further to the rear. Since the range was also considered to be in need of improvement, the supplies were increased. However, adding a few tonnes of weight behind the cab had the opposite effect, as 19.1 tonnes now weighed on the rear axle. Since this was not justifiable for operation on secondary routes, the water box below the coal box was not used in operation and the axle load was thus reduced to 17.4 tonnes.

Production began in 1918 directly with the discontinuation of production of the T 14, but further examples were also made by nine other manufacturers. Including the 39 engines from Württemberg, 768 examples were built before production stopped in 1924. Shortly thereafter, the renumbering followed, in which all engines were given a uniform number range from 93 501 to 93 1261. In service with the two German states in the post-war period, the locomotives on both sides were given computer compatible numbers, but the Bundesbahn retired them in the same year, i.e. in 1968. The last examples were used by the Reichsbahn for another four years.

ManufacturerUnion Königsberg, Hohenzollern, Esslingen, Hanomag, Henschel, BMAG, Schichau, Rheinmetall, Krupp, Wolf
Axle config2-8-2T (Mikado) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length47 ft 6 7/8 in
Wheelbase30 ft 6 1/8 in
Total wheelbase14 ft 9 3/16 in
Empty weight174,165 lbs
Service weight229,280 lbs
Adhesive weight156,528 lbs
Axle load42,108 lbs
Water capacity3,698 us gal
Fuel capacity9,921 lbs (coal)
Power sourcesteam
Indicated power987 hp (736 kW)
Optimal speed16 mph
Top speed40 mph
Starting effort40,346 lbf
Power Plant
Driver diameter53.2 in
Boiler pressure174 psi
Expansion typesimple
Cylinderstwo, 23 5/8 x 26 in
Grate area26.8 sq ft
Firebox area149.5 sq ft
Tube heating area1,239.1 sq ft
Evaporative heating area1,388.7 sq ft
Superheater area541.2 sq ft
Total heating area1,929.9 sq ft
Calculated Values
steam locomotive
tank locomotive
last changed: 01/2022

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