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Württemberg T 3
German Reichsbahn class 893-4
Germany | 1891 | 114 produced
89 339 in October 1985 in Bochum-Dahlhausen
89 339 in October 1985 in Bochum-Dahlhausen
MPW57

The T 3 was a small tank locomotive of the Royal Württemberg State Railways with three coupled axles and no carrying axles. In terms of size, weight and performance, it can be roughly compared to the Prussian T 3 of the same name. Since old, converted locomotives were used for shunting in Württemberg and the T 3 was primarily developed for branch lines and as a pusher locomotive for ramps such as the Geislinger Steige. Production first took place at Krauss in Bavaria from 1891, but shortly thereafter, locomotives from Esslingen machine factory and, for the last series, from the Heilbronn machine building company also followed.

Later series deviated from the first locomotives to eliminate deficiencies or to improve suitability for specific types of routes. At times, some of the locomotives ran without a coupled third axle, i.e. with 0-4-2 wheel arrangement, in order to improve the running properties of individual sections with radii of up to 100 meters. However, since this design could not be regarded as a permanent solution, four locomotives were built with a Klose bogie, which were designated T 3 L. However, since this variant was very expensive to maintain, no further locomotives were built. Of all the variants, these were the earliest to be phased out, by 1927.

In later series of the T 3, the problem of the water tank being too small for line use was addressed. The latter were immediately pulled so far forward that they ended with the smoke box at the front. This also had the advantage of increasing the adhesion mass by a few tonnes. The coal supplies were still in front of the driver's cab above the boiler and the left water tank so as not to restrict the driver's view.

T 3 L with Klose bogie
T 3 L with Klose bogie

The majority of the 114 locomotives built were taken over by the Reichsbahn in 1925 as class 893-4. After the T 3 L was decommissioned after a short time, as already mentioned, the remaining locomotives only remained in use until 1945 at the latest. This could be due to the fact that a comparable model, the Prussian T 3, remained in service in large numbers.

Variant1891 variant1896 variant
General
Built1891-18951896-1913
ManufacturerKrauss, Esslingen, Heilbronn
Axle config0-6-0T (Six-coupled) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length27 ft 10 13/16 in
Service weight65,477 lbs78,705 lbs
Adhesive weight65,477 lbs78,705 lbs
Axle load22,046 lbs26,455 lbs
Fuel capacitycoal
Power
Power sourcesteam
Estimated power201 hp (150 kW)
Optimal speed7 mph
Top speed28 mph
Starting effort17,107 lbf
Power Plant
Driver diameter41.1 in
Boiler pressure174 psi
Expansion typesimple
Cylinderstwo, 14 15/16 x 21 1/4 in
Boiler
Grate area10.8 sq ft
Evaporative heating area687.8 sq ft
Total heating area687.8 sq ft
Calculated Values
steam locomotive
freight
secondary line
tank locomotive
Eugen Kittel
last changed: 01/2022
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