Prussian S 3

The Prussian Class S 3s were saturated steam locomotives developed by Hanomag for the Prussian state railways and were built from 1893.

Prussian S 3
DRG Class 13.0
Prussian S3 photographed in 1895 at Berlin-Charlottenburg
Number(s)DRG 13 002–028
Quantity1027
ManufacturerHanomag
Year(s) of manufacture1893–1904
Retired1927
Wheel arrangement4-4-0
Axle arrangement2′B n2v
TypeS 24.16
Track gauge1,435 mm (4 ft 8 1⁄2 in)
Length over buffers17,561 mm (57 ft 7 1⁄2 in)
Service weight50.5 t (49.7 long tons; 55.7 short tons)
Adhesive weight30.9 t (30.4 long tons; 34.1 short tons)
Axle load15.6 t (15.4 long tons; 17.2 short tons)
Top speed100 km/h (62 mph)
Driving wheel diameter1,980 mm (78 in)
Leading wheel diameter1,000 mm (39 3⁄8 in)
No. of cylindersTwo, outside
LP cylinder bore680 mm (26 3⁄4 in)
HP cylinder bore460 mm (18 1⁄8 in)
Piston stroke600 mm (23 5⁄8 in)
Boiler Overpressure12 kgf/cm2 (1,180 kPa; 171 psi)
Grate area2.32 m2 (25.0 sq ft)
Evaporative heating area117.70 m2 (1,266.9 sq ft)
TenderPrussian 3 T 15
Prussian 2'2' T 16/20/21,5
Water capacity15.0 m3 (530 cu ft)
16.0 m3 (570 cu ft)
20.0 m3 (710 cu ft)
21.5 m3 (760 cu ft)

Design

They were a further development of the S 2 and used the same boiler. The "S" stood for Schnellzuglokomotive, or express locomotive, of which the S 3 was a large and powerful type. Because larger turntables with a 16-metre diameter were then being built, the wheelbase could be longer, which gave it better riding qualities. The locomotive had one high-pressure and one low-pressure cylinder, coupled to four driving wheels in a 4-4-0 configuration.

They were the first class of locomotives to use superheating, a process in which the steam leaving the boiler is re-heated, resulting in better efficiency.

Procurement

The railway procured a total of 1,027 locomotives of this class up to 1904, and they were stabled at almost all locomotive depots (Betriebswerk or Bw), making them the most numerous German express train locomotives. In addition, several hundred units were manufactured with smaller driving wheels - dubbed the P4 class.

Another 40 examples went to the Imperial Railways in Alsace-Lorraine (see Alsace-Lorraine S 3) and six units, with a modified axle base, to the Grand Duchy of Oldenburg State Railways (see Oldenburg S 3).

Locomotive "S3 Stettin 9" (BMAG 2374/1897) around 1905 in Bw Berlin-Gesundbrunnen

Reichsbahn Era

Whilst the Deutsche Reichsbahn still listed 451 Prussian S 3 engines in its 1923 renumbering plan (as 13 008 - 458), only 27 of them were left in 1925. They were grouped as DRG Class 13.0 with operating numbers 13 002–028. Locomotive 13 001 was not an S 3, but a Prussian S 2 converted into an Erfurt-type compound locomotive. The machines were retired by 1927.

The Oldenburg State Railway locomotives were allocated numbers 13 1801–1806 in 1925, but were retired only a year later.

After the First World War over 100 engines were left with the Polish (PKP) and Lithuanian Railways where some were still in service in the 1940s. Some were incorporated into the Reichsbahn fleet during the Second World War as 13 010, 301, 302, 305 - 337, 339 and 340. Several of these locomotives were in the East German Deutsche Reichsbahn until 1955 and were then returned to Poland.

The locomotives were equipped with Prussian 3 T 15, 2'2' T 16, 2'2' T 20 and 2'2' T 21.5 tenders.

See also

References
    • Chant, Christopher. The World's Railways. ISBN 1-85361-487-4.
    • Obermayer, Horst J. Eisenbahn Journal, Typenblätter Band No. 1, Baureihen 01-59, Archiv 1/2002. pp. 37–38. ISBN 3-89610-093-9.
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