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Baden XII

No. 127 with a small steam dome on a works photo of MBG Karlsruhe

Locomotives with no coupled axles were soon no longer sufficient on the Grand Duchy of Baden State Railways either, and so class XII was developed with a 4-4-0 wheel arrangement and a remarkably short wheelbase. Certa...

General

Property	Baden XII 1861 variant 1861 variant 1864 variant Remove
Built	1861-1863
Manufacturers	MBG Karlsruhe
Wheel arrangement	4-4-0 (American)
Gauge	1,435 mm (Standard gauge)

Dimensions and weights

Property	Baden XII 1861 variant 1861 variant 1864 variant Remove
Length	13.45 m
Wheelbase	4.50 m
Rigid wheelbase	1.95 m
Total wheelbase	10.13 m
Empty weight	25.5 t
Service weight	28.7 t
Adhesive weight	16 t
Axle load	8 t
Water capacity	5,670 l

Boiler

Property	Baden XII 1861 variant 1861 variant 1864 variant Remove
Grate area	0.97 m²
Firebox surface	5.86 m²
Tube heating surface	80.36 m²
Evaporative heating surface	86.22 m²
Total heating surface	86.2 m²

Power plant

Property	Baden XII 1861 variant 1861 variant 1864 variant Remove
Driver diameter	1,830 mm
Boiler pressure	7 bar
Expansion type	simple expansion
Cylinders	two, 405 x 560 mm

Power

Property	Baden XII 1861 variant 1861 variant 1864 variant Remove
Power source	steam
Estimated power	130 kW (177 PS)
Top speed	60 km/h
Starting effort	29.9 kN

Calculated values

Property	Baden XII 1861 variant 1861 variant 1864 variant Remove
Factor of adhesion	1 : 5.26
Optimal speed	27 km/h
Power-to-weight ratio	4.5 kW/t
Heating Surface Equivalent	115.5 m²
Cylinder volume/HSE	1 : 1,249.00
Adhesive weight/Total	1 : 1.79
Tractive force/Heating surface	1 : 7.23
Grate area/Heating surface	1 : 88.89
Firebox/Tube surface	1 : 13.71

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