DRB Class 23 DR Class 23.0 DR Class 35.20
Type and originPower typeSteamBuilderSchichau-WerkeSerial number3443–3444Build date1941Total produced2
Type and origin
Power typeSteam
Serial number3443–3444
Build date1941
Total produced2
SpecificationsConfiguration:• Whyte2-6-2• UIC1′C1′ h2• GermanP 35.18Gauge1,435 mm (4 ft 8+1⁄2 in)Leading dia.1,000 mm (39+3⁄8 in)Driver dia.1,750 mm (68+7⁄8 in)Trailing dia.1,250 mm (49+1⁄4 in)Tender wheels1,000 mm (39+3⁄8 in)Wheelbase:• Axle spacing (Asymmetrical)3,100 mm (10 ft 2 in) +2,050 mm (6 ft 8+3⁄4 in) +2,050 mm (6 ft 8+3⁄4 in) +3,500 mm (11 ft 5+3⁄4 in) =• Engine10,700 mm (35 ft 1+1⁄4 in)• Tender1,900 mm (6 ft 2+3⁄4 in) +1,900 mm (6 ft 2+3⁄4 in) +1,900 mm (6 ft 2+3⁄4 in) =5,700 mm (18 ft 8+3⁄8 in)Length:• Over headstocks21,640 mm (71 ft 0 in)• Over buffers22,940 mm (75 ft 3+1⁄8 in)Height4,550 mm (14 ft 11+1⁄8 in)Axle load18 t (18 long tons; 20 short tons)Adhesive weight53.92 t (53.07 long tons; 59.44 short tons)Empty weight80.14 t (78.87 long tons; 88.34 short tons)Service weight88.32 t (86.93 long tons; 97.36 short tons)Total weight148.2 t (145.9 long tons; 163.4 short tons)Tender type2′2′ T 26Fuel typeCoalFuel capacity8 t (7.9 long tons; 8.8 short tons)Water cap.26 m3 (5,700 imp gal; 6,900 US gal)Firebox:• Grate area3.9 m2 (42 sq ft)Boiler:• Pitch3,050 mm (10 ft 1⁄8 in)• Tube plates5,200 mm (17 ft 3⁄4 in)• Small tubes54 mm (2+1⁄8 in), 113 off• Large tubes133 mm (5+1⁄4 in), 35 offBoiler pressure16 bar (16.3 kgf/cm2; 232 psi)Heating surface:• Firebox15.9 m2 (171 sq ft)• Tubes90.4 m2 (973 sq ft)• Flues71.3 m2 (767 sq ft)• Total surface177.6 m2 (1,912 sq ft)Superheater:• Heating area64.1 m2 (690 sq ft)CylindersTwo, outsideCylinder size550 mm × 660 mm (21+5⁄8 in × 26 in)Valve gearHeusinger (Walschaerts)Train heatingSteam
Specifications
Configuration
• UIC1′C1′ h2
• GermanP 35.18
Gauge1,435 mm (4 ft 8+1⁄2 in)
Leading dia.1,000 mm (39+3⁄8 in)
Driver dia.1,750 mm (68+7⁄8 in)
Trailing dia.1,250 mm (49+1⁄4 in)
Tender wheels1,000 mm (39+3⁄8 in)
Wheelbase
• Axle spacing (Asymmetrical)3,100 mm (10 ft 2 in) +2,050 mm (6 ft 8+3⁄4 in) +2,050 mm (6 ft 8+3⁄4 in) +3,500 mm (11 ft 5+3⁄4 in) =
• Engine10,700 mm (35 ft 1+1⁄4 in)
• Tender1,900 mm (6 ft 2+3⁄4 in) +1,900 mm (6 ft 2+3⁄4 in) +1,900 mm (6 ft 2+3⁄4 in) =5,700 mm (18 ft 8+3⁄8 in)
Length
• Over headstocks21,640 mm (71 ft 0 in)
• Over buffers22,940 mm (75 ft 3+1⁄8 in)
Height4,550 mm (14 ft 11+1⁄8 in)
Axle load18 t (18 long tons; 20 short tons)
Adhesive weight53.92 t (53.07 long tons; 59.44 short tons)
Empty weight80.14 t (78.87 long tons; 88.34 short tons)
Service weight88.32 t (86.93 long tons; 97.36 short tons)
Total weight148.2 t (145.9 long tons; 163.4 short tons)
Tender type2′2′ T 26
Fuel typeCoal
Fuel capacity8 t (7.9 long tons; 8.8 short tons)
Water cap.26 m3 (5,700 imp gal; 6,900 US gal)
Firebox
• Grate area3.9 m2 (42 sq ft)
Boiler
• Pitch3,050 mm (10 ft 1⁄8 in)
• Tube plates5,200 mm (17 ft 3⁄4 in)
• Small tubes54 mm (2+1⁄8 in), 113 off
• Large tubes133 mm (5+1⁄4 in), 35 off
Boiler pressure16 bar (16.3 kgf/cm2; 232 psi)
Heating surface
• Firebox15.9 m2 (171 sq ft)
• Tubes90.4 m2 (973 sq ft)
• Flues71.3 m2 (767 sq ft)
• Total surface177.6 m2 (1,912 sq ft)
Superheater
• Heating area64.1 m2 (690 sq ft)
CylindersTwo, outside
Cylinder size550 mm × 660 mm (21+5⁄8 in × 26 in)
Train heatingSteam
Performance figuresMaximum speed110 km/h (68 mph)Indicated power1,500 PS (1,100 kW; 1,480 hp)
Performance figures
Maximum speed110 km/h (68 mph)
Indicated power1,500 PS (1,100 kW; 1,480 hp)
CareerOperatorsDeutsche ReichsbahnDeutsche Reichsbahn (DDR)Numbers23 001 – 23 00235 2001-2 from 1970Retired1975
Career
Numbers23 001 – 23 00235 2001-2 from 1970
Retired1975