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The reference for locomotives and railcars

Baden VIII e

Germany 1908 70 produced
No. 780, first batch, around 1908 PD

At the Baden State Railways, class VIII referred to eight-coupled freight locomotives. When the VIII a and VIII b no longer met current requirements, the VIII e was developed. It also had four coupled wheel sets, but the weight and thus the power could be increased by adding a leading axle. They were the first freight locomotives in Germany with a 2-8-0 wheel arrangement and a bar frame. The design came from Maffei in Munich, but only the first five of the 70 engines from a total of eight batches were manufactured there. The rest were built by the local mechanical engineering company in Karlsruhe.

Austrian engineer Karl Gölsdorf was consulted to improve the running characteristics in curves, so the second and fourth driving wheel sets were installed so that they could be moved sideways by 25 mm. The leading axle was an Adams axle that could be deflected by 65 mm. One of the features of these locomotives was the very high boiler, the center of which was 2,790 mm above the top of the rails. Due to the low height of the bar frame, there was a large gap between the boiler and the frame. This also made it possible to arrange the firebox above the driving wheels and thus to dimension them generously.

Since the locomotives were intended for longer distances without many intermediate stops, a four-cylinder compound engine was installed. The first five batches were still fitted with a Clench steam dryer. All others were equipped with a smoke tube superheater, while the steam dryer was later removed from the first batch and these were thus made into saturated locomotives.

The maximum speed of 65 km/h could be reached on the flat with trains of up to 700 tonnes, while a maximum train weight of 1,840 tonnes was possible at 45 km/h. 68 of the 70 locomotives were taken over by the Reichsbahn and classified as class 567. Their service life ended in 1931, since steam locomotives with a 2-10-0 wheel arrangement were now required for the heavy freight trains and these were also procured as standard locomotives.

Schematic drawing Die Lokomotive, August 1925

Technical data

General

Property 1908 variant 1910 variant 1913 variant
Built 1908 1910-1912 1913-1915
Manufacturers Maffei, MBG Karlsruhe MBG Karlsruhe
Wheel arrangement 2-8-0 (Consolidation)
Gauge 1,435 mm (Standard gauge)

Dimensions and weights

Property 1908 variant 1910 variant 1913 variant
Length 19.13 m 18.78 m 18.80 m
Wheelbase 7.45 m
Total wheelbase 15.86 m
Empty mass 70.4 t 69.4 t
Service mass 77.1 t 75.3 t 76 t
Adhesion mass 65.5 t 63.2 t 64 t
Rigid wheelbase 3.30 m
Axle load 16.4 t 15.8 t 16 t
Water capacity 20,000 l
Fuel capacity 7 t (coal)

Boiler

Property 1908 variant 1910 variant 1913 variant
Grate area 3.75 m² 3.55 m²
Firebox surface 13 m² 11.88 m² 11.85 m²
Tube heating surface 182 m² 175.21 m² 152.52 m²
Evaporative heating surface 195 m² 187.09 m² 164.35 m²
Total heating surface 195.0 m² 187.1 m² 214.5 m²
Superheater surface 50.1 m²

Power plant

Property 1908 variant 1910 variant 1913 variant
Driver diameter 1,350 mm
Boiler pressure 16 bar
Expansion type compound
Cylinders four, HP: 395 x 640 mm and LP: 635 x 640 mm four, HP: 380 x 640 mm and LP: 610 x 640 mm four, HP: 395 x 640 mm and LP: 610 x 640 mm

Power

Property 1908 variant 1910 variant 1913 variant
Power source steam
Estimated power 850 kW (1,156 PS) 825 kW (1,122 PS) 950 kW (1,292 PS)
Top speed 65 km/h
Starting effort 145.1 kN 134.1 kN 141.8 kN
Starting effort simple 174.1 kN 161.0 kN 170.1 kN

Calculated values

Property 1908 variant 1910 variant 1913 variant
Factor of adhesion 1 : 4.43 1 : 4.62 1 : 4.43
Optimal speed 35 km/h 37 km/h 40 km/h
Power-to-weight ratio 11.0 kW/t 12.5 kW/t
Heating Surface Equivalent 260.0 m² 246.5 m² 323.8 m²
Cylinder volume/HSE 1 : 1,382.83 1 : 1,347.74 1 : 1,061.98
Adhesive weight/Total 1 : 1.18 1 : 1.19
Tractive force/Heating surface 1 : 15.54 1 : 14.98 1 : 13.81
Grate area/Heating surface 1 : 52.00 1 : 52.70 1 : 60.41
Firebox/Tube surface 1 : 14.00 1 : 14.75 1 : 12.87
Total/Superheater 1 : 3.28
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