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Palatinate Railways No. 26 to 63
Germany | 1855 | 17 produced
Replica from 1925 at “150 Years of German Railways” in Nuremberg in 1985
Replica from 1925 at “150 Years of German Railways” in Nuremberg in 1985
Markus Hellwig

The locomotives of the Pfalzbahn with the numbers 26 to 63 were express train locomotives, 17 of which have been produced since 1853 by the Esslingen and Maffei machine works. With the Crampton design, smoother running was achieved and speeds could be reached that were actually classified as unrealistic up to this point. Despite the fact that the drive wheels are only 1,830 mm in size, this type is said to have reached speeds of up to 120 km/h. The French Crampton locomotives, which were also designed for 120 km/h, had a wheel diameter of more than 2,100 mm.

However, this advantage was paid for by the fact that the large driving wheels behind the boiler only applied a small amount of adhesion and therefore little traction was available. The adhesion mass was 9.2 tonnes for the first engines and reached 9.7 tonnes for the last ones, which at that time was sufficient for an express locomotive. The locomotives were not only used in flat areas, but also had to cope with gradients of up to 0.7 percent in the Palatinate Forest.

The Pfalzbahn began scrapping the first engines in 1891. The last one disappeared in 1896, when the considerably more modern P 2.I with the wheel arrangement 2-4-2 were already available. In 1925, the example was rebuilt with the name “Die Pfalz” and ten years later drove to the centenary of the German railways in Nuremberg.

Variantearly variantlate variant
General
Built1855-1864
ManufacturerMaffei, Esslingen
Axle config4-2-0 (Crampton) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase12 ft 11 7/8 in
Fixed wheelbase12 ft 11 7/8 in
Empty weight48,502 lbs52,911 lbs
Service weight53,352 lbs58,202 lbs
Adhesive weight20,283 lbs21,385 lbs
Water capacity1,321 us gal
Fuel capacitycoal
Power
Power sourcesteam
Estimated power121 hp (90 kW)134 hp (100 kW)
Optimal speed15 mph
Top speed75 mph
Starting effort5,004 lbf5,731 lbf
Power Plant
Driver diameter72 in
Boiler pressure90 psi
Expansion typesimple
Cylinderstwo, 14 x 24 intwo, 15 x 24 in
Boiler
Grate area10.5 sq ft10.7 sq ft
Firebox area62.4 sq ft
Tube heating area782.5 sq ft
Evaporative heating area738.4 sq ft845 sq ft
Total heating area738.4 sq ft845 sq ft
Calculated Values
steam locomotive
express
last changed: 01/2022
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