Oldenburg S 3

The Oldenburg Class S 3 steam locomotive was a German engine built for the Grand Duchy of Oldenburg State Railways (Großherzoglich Oldenburgische Staatseisenbahnen) in 1903 and 1904. It was based on a Prussian prototype, the Prussian S 3 (see photo), and procured for the route between Wilhelmshaven, Oldenburg and Bremen. It was the first express train engine built for the Oldenburg state railways and also the first one fitted with a steam dome. It replaced the old P 4 passenger train locomotives.

Oldenburg S 3 DRG Class 13.18
Prussian S3 photographed in 1895 at Berlin-Charlottenburg
Type and origin Builder Hanomag Build date 1903–1904 Total produced 6
Specifications Configuration: ​  • Whyte 4-4-0  • German Express train locomotive Leading dia. 1,000 mm (39+3⁄8 in) Driver dia. 1,980 mm (78 in) Length: ​  • Over beams 17,461 mm (57 ft 3+1⁄2 in) Axle load 15.0 t (14.8 long tons; 16.5 short tons) Adhesive weight 30.2 t (29.7 long tons; 33.3 short tons) Service weight 52.2 t (51.4 long tons; 57.5 short tons) Boiler pressure 12 kgf/cm2 (1,180 kPa; 171 lbf/in2) Heating surface:  • Firebox 2.27 m2 (24.4 sq ft)  • Evaporative 119.4 m2 (1,285 sq ft) Cylinders Two, compound Piston stroke 630 mm (24+13⁄16 in) High-pressure cylinder 460 mm (18+1⁄8 in) Low-pressure cylinder 680 mm (26+3⁄4 in)
Performance figures Maximum speed 95 km/h (59 mph)
Career Numbers GOE: 151–154, 160, 161 DRG: 13 1801–1806 Retired 1927

Six engines were built by Hanomag in 1903 and 1904 with numbers 151–154, 160 and 161. They differed in several technical details from their Prussian counterparts, but did not have Lentz valve gear which, later, became common throughout Oldenburg.

The Deutsche Reichsbahn took over all six locomotives and grouped them into DRG Class 13.18, allocating them the numbers 13 1801 to 13 1806. They were retired by 1927.