DR Class 23.10

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
DR Class 23.10 (35.10)
Baureihe 23.10 35 1019-5 Wolsztyn 05.16 056.JPG
35 1019-5
Number(s)
  • New: 23 1001 – 23 1113
  • 1970: 35 1001 – 35 1113
Quantity113
Year(s) of manufacture1955–1959
Retired1991
Wheel arrangement2-6-2
Axle arrangement1′C1′ h2
TypeP 35.18
Track gauge1,435 mm (4 ft 8 12 in)
Length over buffers22,660 mm (74 ft 4 14 in)
Empty weight78.5 tonnes (77.3 long tons; 86.5 short tons)
Service weight87.2 tonnes (85.8 long tons; 96.1 short tons)
Adhesive weight54.7 tonnes (53.8 long tons; 60.3 short tons)
Axle load18.3 tonnes (18.0 long tons; 20.2 short tons)
Top speed
  • Forwards: 110 km/h (68 mph)
  • Reverse: 50 km/h (31 mph)
Indicated Power1,250 kW (1,700 PS; 1,680 hp)
Driving wheel diameter1,750 mm (5 ft 8 78 in)
Leading wheel diameter1,000 mm (3 ft 3 38 in)
Trailing wheel diameter1,250 mm (4 ft 1 14 in)
No. of cylindersTwo, outside
Cylinder bore550 mm (21 58 in)
Piston stroke660 mm (26 in)
Boiler Overpressure16 bar (1.60 MPa; 232 psi)
No. of heating tubes150
No. of smoke tubes38
Heating tube length4,200 mm (13 ft 9 14 in)
Grate area3.71 square metres (39.9 sq ft)
Superheater area68.50 m2 (737.3 sq ft)
Evaporative heating area159.60 m2 (1,717.9 sq ft)
Tender2′2′ T28
Water capacity28 m3 (990 cu ft) or 28,000 litres (6,200 imp gal; 7,400 US gal)
FuelCoal: 10 tonnes (9.8 long tons; 11 short tons)

The steam locomotives of DR Class 23.10, (from 1 June 1970 Class 35.10) were passenger train engines built for the Deutsche Reichsbahn in East Germany after the Second World War.

History[edit]

35 1097-1 in Dresden in 1999

The Class 23.10 was an evolutionary development by the DR of the DRG Class 23 standard locomotives or Einheitsdampflokomotiven built earlier by the Deutsche Reichsbahn-Gesellschaft. Only two of the latter were completed due to the onset of the war. The same dimensions were used for the driving and running gear, but the locomotives were given IfS/DR mixer-preheaters, boilers equipped with combustion chambers and a large driver's cab. The feedwater dome was omitted from locomotives numbered 23 1003 and later. The first of 113 units was deployed in 1955, and they were used for light to medium express train services, being allocated numbers 23 1001–1113.

With the introduction of EDP numbering on 1 January 1970, all locomotives were re-numbered to 35 1001–1113.

The last engines were retired from Nossen in May 1977, number 35 1113 however had to be reactivated due to the energy crisis and continued in service until 1985.

The locomotives were equipped with tenders of Class 2'2' T 28.

Preserved locomotives[edit]

Remaining locomotives of this class today include:

See also[edit]

Literature[edit]

  • Ebel, J.U.; Stange, A.; Schlegel, D. (2003). Die Baureihe 23.10 (in German). Freiburg: EK-Verlag. ISBN 978-3-88255-123-5.