kkStB 112

The kkStB 112 was a class of express train 2-2-2 tank engine operated by the Imperial Royal Austrian State Railways (kaiserlich-königliche österreichische Staatsbahnen or kkStB).

kkStB 112
BBÖ 112
DRB Class 69.01
Type and origin
BuilderKrauss/Linz
Build date1907
Total produced2
Specifications
Configuration:
​
 • Whyte2-2-2T
Gauge1,435 mm (4 ft 8+1⁄2 in)
Leading dia.870 mm (34+1⁄4 in)
Driver dia.1,450 mm (57+1⁄8 in)
Trailing dia.870 mm (34+1⁄4 in)
Wheelbase:
 • Overall		5,050 mm (16 ft 6+3⁄4 in)
Length7,550 mm (24 ft 9+1⁄4 in)
Height4,558 mm (14 ft 11+1⁄2 in)
Adhesive weight14.3 t
(14.1 long tons; 15.8 short tons)
Service weight31.6 t
(31.1 long tons; 34.8 short tons)
Fuel capacity1.36 t (1.34 long tons; 1.50 short tons) of coal
Water cap.3.0 m3 (660 imp gal; 790 US gal)
Boiler:
​
No. of heating tubes128
Heating tube length2,500 mm (8 ft 2+1⁄2 in)
Boiler pressure15 kgf/cm2 (1,470 kPa; 213 lbf/in2)
Heating surface:
 • Tubes		39.60 m2 (426.3 sq ft)
 • Firebox1.03 m2 (11.1 sq ft)
 • Radiative5.20 m2 (56.0 sq ft)
Cylinders2
Piston stroke550 mm (21+5⁄8 in)
High-pressure cylinder260 mm (10+1⁄4 in)
Low-pressure cylinder400 mm (15+3⁄4 in)
Performance figures
Maximum speed75 km/h (47 mph)
Career
Numbers
  • kkStB: 112.01–112.02
  • BBÖ: 112.01–112.02
  • DRB: 69 011
Retired1937, 1942

In order for the kkStB to provide a fast feeder service to express train stations, a requirement arose for small, fast locomotives. Karl Gölsdorf designed Class 112 for this purpose. The compound locomotive engines were well built, enabled a top speed of 100 km/h (62 mph) to be attained for short periods of time and could haul 100 tonnes continuously at 80 km/h (50 mph). On their deliver in 1907 by Krauss in Linz the two engines were fitted with a small smokebox superheater, that was later removed.

The small locomotives were initially used to haul newspaper trains between Vienna and Linz. Later they hauled the shuttle (Pendler) between Hütteldorf and Unterpurkersdorf, a connecting line to the Vienna Stadtbahn, where they were marshalled in the centre of the train.

Number 112.02 was retired in 1937, whilst 112.01 went into the Deutsche Reichsbahn as number 69 011 where it was withdrawn from service in 1942.

References
    • Hütter, Ingo (2021). Die Dampflokomotiven der Baureihen 60 bis 91 der DRG, DRB, DB, und DR (in German). Werl: DGEG Medien. pp. 49–50. ISBN 978-3-946594-21-5.
    • Heribert Schröpfer, Triebfahrzeuge österreichischer Eisenbahnen - Dampflokomotiven BBÖ und ÖBB, alba, Düsseldorf, 1989 ISBN 3-87094-110-3

    See also
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