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Saxon VII (Schwartzkopff type)
Germany | 1869 | 10 produced
No. 188 “House Wettin” on a company photo by Schwartzkopff
No. 188 “House Wettin” on a company photo by Schwartzkopff

On the Royal Saxon State Railways, class VII referred to four-coupled tender locomotives that were suitable for both passenger and freight trains. In addition to 22 engines from Sächsische Maschinenfabrik Hartmann, there was a design by Schwartzkopff from Berlin, which was also known as Schw. VII. At the time these locomotives were ordered, the Saxon State Railways were still divided into a western and an eastern part. In this case, the Western State Railway needed a new locomotive for the newly opened section between Freiberg and Flöha on the Dresden-Werdau route.

The enignes were constructed according to modern principles and had an internal plate frame and outside cylinders and Allan valve gear. Since only a regulator attachment was used to extract the saturated steam instead of a steam dome, the locomotive made a clean impression with its little obstructed boiler. Only the Belpaire firebox interrupted the clear lines of the boiler barrel

Ten machines were procured, which were named after people with important connections to Saxony, Saxon noble families and cities. They were taken over by the combined Saxon State Railways in 1871 and only received the designation VII there. They were retired between 1893 and 1906.

General
Built1869
ManufacturerBMAG
Axle config0-4-0 (Four-coupled) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Empty weight53,131 lbs
Service weight61,288 lbs
Adhesive weight61,288 lbs
Axle load30,644 lbs
Water capacity1,495 us gal
Fuel capacity4,409 lbs (coal)
Power
Power sourcesteam
Estimated power268 hp (200 kW)
Optimal speed15 mph
Starting effort11,322 lbf
Power Plant
Driver diameter60 in
Boiler pressure122 psi
Expansion typesimple
Cylinderstwo, 16 9/16 x 24 in
Boiler
Grate area12.9 sq ft
Firebox area71 sq ft
Tube heating area936.5 sq ft
Evaporative heating area1,007.5 sq ft
Total heating area1,007.5 sq ft
Calculated Values
steam locomotive
freight
last changed: 01/2022
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