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Saxon VIII V 1
German Reichsbahn classes 1371 and 1315
Germany | 1896
32 produced
The No. 146 “Münster” on a builder's photo by Hartmann
The No. 146 “Münster” on a builder's photo by Hartmann

The Saxon state railway classified locomotives in class VIII, which had the wheel arrangement 4-4-0 and pulled a large portion of the express trains. The first model in the series was designated VIII 1 and had been in use in small numbers since 1870. The designation of the VIII V 1, which had been built since 1896 based on the Prussian S 3, indicated the use of a compound engine. Together with its two sister models, which were developed around the same time, it quickly ousted its predecessor from the high-value services.

With its 1,885 mm driver diameter, it reached a top speed of not very outstanding 85 km/h, but at that time this was sufficient for express trains. In the years 1896 and 1897, ten examples each with cylinder diameters of 460 and 680 mm and 500 and 700 mm were built. The last models built came with cylinder diameters of 480 and 630 mm, as well as a boiler pressure increased to 13 bar at 100 km/h.

Despite the good efficiency of the compound engine, a lack of power became apparent, especially after the introduction of faster six-coupled express locomotives, which soon made the VIII V 1 no longer the first choice. The low adhesive weight of just over 30 tonnes was also a disadvantage in mountainous areas. The Reichsbahn took over 23 of the 32 engines built and retired all of them by 1932. They were classified as series 1315 and 1371.

Variant121-130131-140141-152
General
Built1896-18971900
ManufacturerHartmann
Axle config4-4-0 (American) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length55 ft 1 1/8 in
Wheelbase22 ft 3 11/16 in
Rigid wheelbase7 ft 10 1/2 in
Empty weight108,026 lbs
Service weight120,152 lbs
Adhesive weight70,548 lbs
Axle load35,274 lbs
Water capacity3,170 us gal3,963 us gal5,548 us gal
Fuel capacity8,818 lbs (coal)11,023 lbs (coal)15,432 lbs (coal)
Boiler
Grate area24.8 sq ft
Firebox area119.2 sq ft
Tube heating area1,268.6 sq ft
Evaporative heating area1,387.8 sq ft
Total heating area1,387.8 sq ft
Variant121-130131-140141-152
Power Plant
Driver diameter74.2 in
Boiler pressure174 psi188 psi
Expansion typecompound
Cylinderstwo, HP: 18 1/8 x 24 13/16 in
and LP: 26 3/4 x 24 13/16 in
two, HP: 19 11/16 x 24 13/16 in
and LP: 27 9/16 x 24 13/16 in
two, HP: 18 7/8 x 24 13/16 in
and LP: 27 9/16 x 24 13/16 in
Power
Power sourcesteam
Estimated power704 hp (525 kW)
Optimal speed40 mph35 mph
Top speed53 mph62 mph
Starting effort11,122 lbf12,683 lbf13,008 lbf
with start valve13,346 lbf15,220 lbf15,610 lbf
Calculated Values
steam locomotive
passenger
last changed: 01/2022
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