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Bavarian G 3/4 H
German Reichsbahn class 5415-17
Germany | 1919 | 225 produced
G 3/4 No. 7210
G 3/4 No. 7210

From 1899 the D VI or G 3/4 N had been procured, which was a saturated freight locomotive for flat routes. From 1919 the G 3/4 H was built, which had a similar design, but was to be much more efficient through the use of superheated steam

In addition to the use of a superheater and adapted cylinders, a feedwater heater and a larger and therefore more powerful boiler were introduced. Since it was only a freight locomotive, it was decided to build the leading axle as an Adams axle instead of the complex Krauss-Helmholtz bogie. Some improvements were implemented during production. For example, the steam dome and sandbox were later separated from each other, initially both were housed under a common cover. In addition, the shell of the boiler was made thicker to increase the adhesion weight.

Shortly after they were delivered, the locomotives were taken over by the Reichsbahn as the class 5415-17. In contrast to their predecessors, they were not retired in the 1930s, but most examples even survived the Second World War. After the war, most came to the Bundesbahn, where 54 1632 was the last to be retired in 1966. At the end of the war, some engines were also on Austrian territory and were used there by the ÖBB as class 654. These were in service until 1957.

No complete G 3/4 H does exist until today. Remains of an engine destroyed by bombs during the war were found in 2004 during construction work at Treuchtlingen station. Since then, these have been exhibited in the Bavarian Railway Museum in Nördlingen.

Variantvariant 1919variant 1921
ManufacturerMaffei, Krauss
Axle config2-6-0 (Mogul) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length57 ft 5 in
Wheelbase21 ft 11 3/4 in
Fixed wheelbase13 ft 1 1/2 in
Total wheelbase46 ft 1 1/8 in
Service weight135,364 lbs137,127 lbs
Adhesive weight108,026 lbs109,790 lbs
Axle load35,935 lbs36,817 lbs
Water capacity4,808 us gal
Fuel capacity13,228 lbs (coal)
Power sourcesteam
Indicated power1,026 hp (765 kW)
Optimal speed21 mph
Top speed40 mph
Starting effort31,337 lbf
Power Plant
Driver diameter53.2 in
Boiler pressure188 psi
Expansion typesimple
Cylinderstwo, 20 1/2 x 24 13/16 in
Grate area28.4 sq ft
Firebox area108.1 sq ft
Tube heating area1,409.7 sq ft
Evaporative heating area1,507.1 sq ft
Superheater area394.5 sq ft
Total heating area1,901.6 sq ft
Calculated Values
steam locomotive
last changed: 01/2022

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