DR Class 23.10

DR Class 23.10 (35.10)
35 1019-5 in April 2016
Type and origin
Power typeSteam
BuilderLKM Babelsberg [de]
Serial number656002/1, 656002/2, 123003–123113
Build date1955–1959
Total produced113
Specifications
Configuration:
 • Whyte2-6-2
 • UIC1C1 h2
 • 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)
Tender wheels1,000 mm (3 ft 3+38 in)
Wheelbase:
 • Axle spacing
(Asymmetrical)
  • 3,000 mm (9 ft 10+18 in) +
  • 2,000 mm (6 ft 6+34 in) +
  • 2,000 mm (6 ft 6+34 in) +
  • 3,100 mm (10 ft 2 in) =
 • Engine10,100 mm (33 ft 1+58 in)
 • Tender
  • 1,900 mm (6 ft 2+34 in) +
  • 1,900 mm (6 ft 2+34 in) +
  • 1,900 mm (6 ft 2+34 in) =
  • 5,700 mm (18 ft 8+38 in)
 • incl. tender18,610 mm (61 ft 58 in)
Length:
 • Over headstocks21,360 mm (70 ft 1 in)
 • Over buffers22,660 mm (74 ft 4+18 in)
Height4,550 mm (14 ft 11+18 in)
Axle load18.3 t (18.0 long tons; 20.2 short tons)
Adhesive weight54.7 t (53.8 long tons; 60.3 short tons)
Empty weight78.5 t (77.3 long tons; 86.5 short tons)
Service weight87.2 t (85.8 long tons; 96.1 short tons)
Tender type22 T 28
Fuel typeCoal
Fuel capacity10 t (9.8 long tons; 11 short tons)
Water cap.28 m3 (6,160 imp gal; 7,400 US gal)
Firebox:
 • Grate area3.71 m2 (39.9 sq ft)
Boiler:
 • Pitch3,100 mm (10 ft 2 in)
 • Tube plates4,200 mm (13 ft 9+38 in)
 • Small tubes44.5 mm (1+34 in), 150 off
 • Large tubes133 mm (5+14 in), 38 off
Boiler pressure16 bar (16.3 kgf/cm2; 232 psi)
Heating surface:
 • Firebox17.9 m2 (193 sq ft)
 • Tubes79.0 m2 (850 sq ft)
 • Flues62.7 m2 (675 sq ft)
 • Total surface159.6 m2 (1,718 sq ft)
Superheater:
 • Heating area65.7 m2 (707 sq ft)
CylindersTwo, outside
Cylinder size550 mm × 660 mm (21+58 in × 26 in)
Performance figures
Maximum speed
  • Forwards: 110 km/h (68 mph)
  • Reverse: 50 km/h (31 mph)
Indicated power1,700 PS (1,250 kW; 1,680 hp)
Career
OperatorsDeutsche Reichsbahn (GDR)
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.