The reference for locomotives and railcars


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Prussian G 3
German Reichsbahn class 5370-71
Germany | 1877 | 2,068 produced
Standard variant with inside valve gear
Standard variant with inside valve gear
Die Lokomotive, September 1914

The six-coupled G 3 was the standard freight locomotive of the Prussian State Railways for a long time, which resulted in a long procurement time and high quantities. They were preceded by a total of 285 engines of similar design of the predecessors of the state railway, which were later also designated as G 3. The state railway finally procured 2,068 locomotives of a standard type. The locomotives were designed to be relatively simple for versatility and easy maintenance. Although they were built according to the Prussian standard designs, they showed some differences depending on the year of construction and area of application.

Most machines had inside valve gear, but some were built with outside valve gear. The arrangement of the machinery on top of the boiler also changed over time. Some engines received a feedwater heater in the tender, but this did not catch on. To increase power, some locomotives were built with a boiler designed for a pressure of 12 bar. Eventually these were designated G 41 and built as a separate class. In 1886 the construction of the G 3 was stopped in Prussia in favor of this design.

Variant with outside valve gear
Variant with outside valve gear
Die Lokomotive, September 1914

In addition to the state railways, other machines also went to various railways in Prussia. From 1892, the Mecklenburg Friedrich-Franz-Eisenbahn also procured freight locomotives based on the plans of the G 3. They first referred to them as class IX, but from 1910 they also became the G 3.

The 1923 Reichsbahn renumbering plan contained 523 Prussian G 3s, primarily from the later series, which were to be given the numbers 53 7001 to 53 7522. Most of them were subsequently sorted out, so that finally 158 units actually made it to the Reichsbahn. Since the locomotives no longer met the increased requirements in line service and more suitable locomotives were available for shunting, the remaining machines were also retired by 1930.

Today there is only one machine left, which was first numbered “Cöln 1100” and later “Saarbrücken 3143”. It was preserved in the DB Museum in Nuremberg and today has the original livery.

Variantinside valve gearoutside valve gear
ManufacturerBMAG, Borsig, Grafenstaden, Hanomag, Hartmann, Henschel, Hohenzollern, Schichau, Union Königsberg, Vulcan, Wöhlert
Axle config0-6-0 (Six-coupled) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length49 ft 9 1/2 in
Length loco28 ft 11 1/2 in
Wheelbase11 ft 1 7/8 in
Fixed wheelbase11 ft 1 7/8 in
Empty weight76,103 lbs71,871 lbs
Service weight87,656 lbs84,657 lbs
Adhesive weight87,656 lbs84,657 lbs
Total weight158,204 lbs155,205 lbs
Axle load29,218 lbs28,219 lbs
Water capacity2,774 us gal
Fuel capacity8,818 lbs (coal)
Power sourcesteam
Estimated power429 hp (320 kW)
Optimal speed15 mph
Top speed28 mph
Starting effort18,325 lbf
Power Plant
Driver diameter52.4 in
Boiler pressure145 psi
Expansion typesimple
Cylinderstwo, 17 11/16 x 24 13/16 in
Grate area16.1 sq ft16.5 sq ft
Firebox area83.7 sq ft
Tube heating area1,259.5 sq ft
Evaporative heating area1,343.2 sq ft
Total heating area1,343.2 sq ft
Calculated Values
steam locomotive
last changed: 01/2022

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