Prussian G 5.5

The Prussian G 5.5 locomotives were early German freight locomotives with a compound engine. Unlike the otherwise identical G 5.4 they had a leading Adams axle instead of a Krauss-Helmholtz bogie. The delivery of the G 5.5 in 1910 followed directly after that of the G 5.4. A total of either 20 or 25 G 5.5 locomotives were built.

Prussian G 5.5 DRG Class 54.10
Type and origin Build date 1910 Total produced 20 or 25
Specifications Configuration: ​  • Whyte 2-6-0 Gauge 1,435 mm (4 ft 8+1⁄2 in) Leading dia. 1,000 mm (39 in) Driver dia. 1,350 mm (4 ft 5 in) Length: ​  • Over beams 16,168 mm (53 ft 0.5 in) Axle load 15.3 t Adhesive weight 44.0 t Service weight 55.1 t Water cap. 12.0 m3 (2,600 imp gal) / 15.0 m3 (3,300 imp gal) Boiler pressure 12 bar Heating surface: ​  • Firebox 2.29 m2 (24.6 sq ft)  • Evaporative 137.00 m2 (1,474.7 sq ft) Cylinders 2 Cylinder size 500 mm (20 in) / 750 mm (30 in) Piston stroke 630 mm (25 in)
Performance figures Maximum speed 65 km/h (40 mph) Indicated power 574/750 kW
Career Numbers DRG 54 1076-1092

The Deutsche Reichsbahn took over several of these locomotives as Nos. 54 1076-1092; other sources list them as Nos. 54 1080-1082 and 1085-1092. During the Second World War, several more G 5.5's were reclaimed by the Reichsbahn from Poland: Nos. 54 1121, 1141, 1157 and 1185; other sources cite 54 1183, 1217 and 1218.

Other railways also procured this class:

• Grand Duchy of Mecklenburg Friedrich-Franz Railway: Nine locomotives, classed as G 5.4, see Mecklenburg G 5.4.
• Imperial Railways in Alsace-Lorraine: Three locomotives from 1912, see Alsace-Lorraine G 5.5.

See also

• Prussian state railways
• List of Prussian locomotives and railbuses