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The reference for locomotives and railcars

Baden I e

German Reichsbahn class 8875

Germany 1887 30 produced
No. 446 Lokarchiv Baden/archive Töpelmann PD

In order to do something about the inefficient use of old steam locomotives in shunting service, the I e was designed for the Württemberg State Railway as a four-coupled tank locomotive. During development, however, attention was also paid to the fact that the engines could be used in line service on branch lines if required. They were designed as a cost-effective and purposeful construction. By using the 20 mm thick plate frame as a water tank, the coal bunker could be moved in front of the driver's cab, which reduced the overall length of the locomotive.

On the boiler barrel, the steam dome and the regulator were separate from each other, with a sandbox between them. The Allan valve gear had to be on the outside and the drive was on the second axle. With a driving wheel diameter of 1,235 mm, speeds of up to 60 km/h could be reached. In addition to a modern air brake, some of the machines also had a countersteam brake.

30 were delivered in several batches, of which 25 units were taken over by the Reichsbahn in 1925. Together with the I b taken over from the Pfalzbahn, they were classified in the class 8875. By 1930 all were retired or sold to private operators. One example was on Austrian territory after the end of the Second World War after it had been used by a construction company. It was taken over by the ÖBB and used until 1956, making it the last representative of the I e.

Technical data

General

Property batches 1-4 batches 5 and 6
Built 1887-1893
Manufacturers MBG Karlsruhe
Wheel arrangement 0-4-0WT (Four-coupled)
Gauge 1,435 mm (Standard gauge)

Dimensions and weights

Property batches 1-4 batches 5 and 6
Length 7.74 m
Wheelbase 2.50 m
Empty mass 22.4 t
Service mass 28.7 t 28.2 t
Adhesion mass 28.7 t 28.2 t
Rigid wheelbase 2.50 m
Axle load 14.4 t 14.1 t
Water capacity 2,500 l
Fuel capacity 1 t (coal)

Boiler

Property batches 1-4 batches 5 and 6
Grate area 0.81 m²
Firebox surface 4.13 m²
Tube heating surface 45.34 m² 49.76 m²
Evaporative heating surface 49.47 m² 53.89 m²
Total heating surface 49.5 m² 53.9 m²

Power plant

Property batches 1-4 batches 5 and 6
Driver diameter 1,235 mm
Boiler pressure 10 bar
Expansion type simple expansion
Cylinders two, 325 x 550 mm

Power

Property batches 1-4 batches 5 and 6
Power source steam
Estimated power 130 kW (177 PS)
Top speed 60 km/h
Starting effort 40.0 kN

Calculated values

Property batches 1-4 batches 5 and 6
Factor of adhesion 1 : 7.04 1 : 6.92
Optimal speed 19 km/h
Power-to-weight ratio 4.5 kW/t 4.6 kW/t
Heating Surface Equivalent 70.1 m² 74.5 m²
Cylinder volume/HSE 1 : 1,301.39 1 : 1,224.22
Adhesive weight/Total 1 : 1.00
Tractive force/Heating surface 1 : 16.88 1 : 15.50
Grate area/Heating surface 1 : 61.07 1 : 66.53
Firebox/Tube surface 1 : 10.98 1 : 12.05
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