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Bavarian R 3/3
German Reichsbahn class 897-8
Germany | 1906
108 produced
Former No. 4701 of the K.Bay.Sts.B. in original livery in October 1985 in Bochum-Dahlhausen
Former No. 4701 of the K.Bay.Sts.B. in original livery in October 1985 in Bochum-Dahlhausen
MPW57

The class R 3/3 locomotives were small freight tank locomotives that were primarily intended for shunting operations and were therefore also given the designation “R”. They were almost identical to the D IIII, which had been built since the end of the nineteenth century. They were six-coupled saturated locomotives without carrying axles and with a Westinghouse air brake.

The first 15 locomotives were delivered in 1906 and a further three followed in 1913. After the founding of the Deutsche Reichsbahn, the Bavarian group administration had further need and so the majority of production, 90 locomotives, was only delivered between 1921 and 1923. The latter had an axle load increased from 15 to 16 tonnes with otherwise identical performance data. When the locomotives of the pre-war variants were renumbered, they were assigned the class 897 and the newer ones became 898. Some remained in Austria after the Second World War, where they became class 789 while retaining their road numbers. The Polish state railway took over some of the locomotives from Silesia as Tkh5.

In Germany, they continued to be used by the Bundesbahn as well, so that almost all of them were still in service at the end of the 1950s. However, they were then taken out of service within a relatively short period of time, as larger numbers of diesel locomotives were now available for shunting service. The last locomotive was therefore taken out of service in 1964. 89 801, former number 4701, is the only surviving example today. It was restored to its original livery and lettering and was kept in the DB Museum Nuremberg until 2005. After a fire, the locomotive was refurbished in Koblenz and is now located there.

Variant1906 variant1921 variant
General
Built1906, 19131921-1923
ManufacturerKrauss
Axle config0-6-0T (Six-coupled) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length30 ft 10 1/2 in32 ft 8 11/16 in
Wheelbase12 ft 1 11/16 in
Rigid wheelbase12 ft 1 11/16 in
Service weight98,767 lbs104,940 lbs
Adhesive weight98,767 lbs104,940 lbs
Axle load32,849 lbs35,053 lbs
Boiler
Grate area17.3 sq ft
Firebox area68.9 sq ft
Tube heating area964.4 sq ft
Evaporative heating area1,033.3 sq ft
Total heating area1,033.3 sq ft
Variant1906 variant1921 variant
Power Plant
Driver diameter47.9 in
Boiler pressure174 psi
Expansion typesimple
Cylinderstwo, 16 9/16 x 24 in
Power
Power sourcesteam
Indicated power422 hp (315 kW)
Optimal speed13 mph
Top speed28 mph
Starting effort20,285 lbf
Calculated Values
steam locomotive
switcher
tank locomotive
last changed: 04/2022
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