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Badenian X d
later VII a and German Reichsbahn class 5385
Germany | 1866 | 171 produced
Factory photo of the manufacturer MBG Karlsruhe
Factory photo of the manufacturer MBG Karlsruhe

The type X d, known as VII a according to the new scheme from 1868, was the first freight locomotive to be purchased in large numbers by the Grand Duchy of Baden State Railways. With more and more improvements, it was able to stay in production from 1866 to 1891, resulting in 171 engines from 17 batches.

To increase the adhesive weight, all three axles were coupled, with the power being applied by the outside cylinders to the middle axle. The Stephenson-type valve gear was inside, and the greater wheelbase between the first two axles compared to the rear two is visible. In the first three batches, a large steam dome was used directly above the firebox, later a Belpaire firebox and a steam dome on the boiler barrel were used. Boiler pressure was nine bars for most batches, but was increased to ten bars for the last two batches due to advances in manufacturing and materials. Later, some engines even received a new boiler with twelve bars pressure. Two and three-axle models with different capacities were used as tenders. After retiring from line service, some locomotives were converted into tank locomotives and received a new driver's cab that was better suited for shunting.

By the outbreak of the First World War, 141 of the 171 units were still in use and the Reichsbahn finally took over 44 units in 1925, including three units from the first year of production. However, not only these were already obsolete, but also the newer batches and thus all examples of the locomotive now designated as class 5385 were retired before 1930.

Variant1866 variant1869 variant1890 variant
General
Built1866-18671868-18891890-1891
ManufacturerMBG Karlsruhe
Axle config0-6-0 (Six-coupled) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length48 ft 0 9/16 in48 ft 5 5/16 in
Wheelbase11 ft 3 13/16 in
Fixed wheelbase11 ft 3 13/16 in
Empty weight68,564 lbs74,406 lbs78,484 lbs
Service weight78,484 lbs84,437 lbs88,626 lbs
Adhesive weight78,484 lbs84,437 lbs88,626 lbs
Axle load26,015 lbs28,219 lbs29,542 lbs
Water capacity2,113 us gal
Fuel capacity8,818 lbs (coal)
Power
Power sourcesteam
Estimated power322 hp (240 kW)335 hp (250 kW)402 hp (300 kW)
Optimal speed11 mph12 mph13 mph
Top speed28 mph
Starting effort18,690 lbf18,241 lbf20,075 lbf
Power Plant
Driver diameter48 in49.2 in49.7 in
Boiler pressure130 psi145 psi
Expansion typesimple
Cylinderstwo, 18 x 25 in
Boiler
Grate area13.6 sq ft14.3 sq ft15.8 sq ft
Firebox area75.3 sq ft77.3 sq ft80.7 sq ft
Tube heating area1,254.2 sq ft1,239.6 sq ft1,252.5 sq ft
Evaporative heating area1,329.6 sq ft1,316.9 sq ft1,333.2 sq ft
Total heating area1,329.6 sq ft1,316.9 sq ft1,333.2 sq ft
Calculated Values
steam locomotive
freight
last changed: 01/2022
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