DR Class 23.10 (35.10)
35 1019-5
Type and origin
Build date1955–1959
Total produced113
Specifications
Configuration:
  Whyte2-6-2
  GermanP 35.18
Gauge1,435 mm (4 ft 8+12 in)
Leading dia.1,000 mm (3 ft 3+38 in)
Driver dia.1,750 mm (5 ft 8+78 in)
Trailing dia.1,250 mm (4 ft 1+14 in)
Length:
  Over beams22,660 mm (74 ft 4+14 in)
Axle load18.3 tonnes (18.0 long tons; 20.2 short tons)
Adhesive weight54.7 tonnes (53.8 long tons; 60.3 short tons)
Empty weight78.5 tonnes (77.3 long tons; 86.5 short tons)
Service weight87.2 tonnes (85.8 long tons; 96.1 short tons)
Tender type2′2′ T28
Fuel capacityCoal: 10 tonnes (9.8 long tons; 11 short tons)
Water cap.28 m3 (990 cu ft) or 28,000 litres (6,200 imp gal; 7,400 US gal)
Boiler:
No. of heating tubes150
No. of smoke tubes38
Heating tube length4,200 mm (13 ft 9+14 in)
Boiler pressure16 bar (1.60 MPa; 232 psi)
Heating surface:
  Firebox3.71 square metres (39.9 sq ft)
  Evaporative159.60 m2 (1,717.9 sq ft)
Superheater:
  Heating area68.50 m2 (737.3 sq ft)
CylindersTwo, outside
Cylinder size550 mm (21+58 in)
Piston stroke660 mm (26 in)
Performance figures
Maximum speed
  • Forwards: 110 km/h (68 mph)
  • Reverse: 50 km/h (31 mph)
Indicated power1,250 kW (1,700 PS; 1,680 hp)
Career
Numbers
  • New: 23 1001 – 23 1113
  • 1970: 35 1001 – 35 1113
Retired1991

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.Is produced in H0 scale to many train model railway.

History

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

Remaining locomotives of this class today include:

See also

Literature

  • Ebel, J.U.; Stange, A.; Schlegel, D. (2003). Die Baureihe 23.10 (in German). Freiburg: EK-Verlag. ISBN 978-3-88255-123-5.
  • Weisbrod, Manfred; Müller, Hans; Petznik, Wolfgang (1976). Dampflokomotiven deutscher Eisenbahnen, Baureihe 01–39 (EFA 1.1) (in German) (3rd ed.). Düsseldorf: Alba Buchverlag. pp. 181–184. ISBN 3-87094-081-6.
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