DRB Class 01.10

Specifications
Specifications
Configuration:;
• Whyte	4-6-2
• UIC	2′C1′ h3
• German	S 36.20
Driver	Divided: inside cylinder on 1st,; outside cylinders on 2nd
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Leading dia.	1,000 mm (3 ft 3+3⁄8 in)
Driver dia.	2,000 mm (6 ft 6+3⁄4 in)
Trailing dia.	1,250 mm (4 ft 1+1⁄4 in)
Tender wheels	1,000 mm (3 ft 3+3⁄8 in)
Wheelbase:
• Axle spacing; (Asymmetrical)	2,200 mm (7 ft 2+5⁄8 in) +; 1,800 mm (5 ft 10+7⁄8 in) +; 2,300 mm (7 ft 6+1⁄2 in) +; 2,300 mm (7 ft 6+1⁄2 in) +; 3,800 mm (12 ft 5+5⁄8 in);
• Engine	12,400 mm (40 ft 8+1⁄4 in)
• Tender	6,000 mm (19 ft 8+1⁄4 in)
• incl. tender	20,370 mm (66 ft 10 in)
Length:;
• Over headstocks	22,830 mm (74 ft 10+3⁄4 in)
• Over buffers	24,130 mm (79 ft 2 in)
Axle load	20.1 tonnes (19.8 long tons; 22.2 short tons)
Adhesive weight	60.2 tonnes (59.2 long tons; 66.4 short tons)
Empty weight	103.1 tonnes (101.5 long tons; 113.6 short tons)
Service weight	114.3 tonnes (112.5 long tons; 126.0 short tons)
Tender type	2′3 T 38
Fuel capacity	10.0 tonnes (9.8 long tons; 11.0 short tons) coal or; 13,500 L (2,970 imp gal; 3,570 US gal) fuel oil
Water cap.	38.0 m3 (8,400 imp gal; 10,000 US gal)
Firebox:
• Grate area	4.32 m2 (46.5 sq ft)
Boiler:;
• Tube plates	6,800 mm (267+11⁄16 in)
• Small tubes	70 mm (2+3⁄4 in), 106 off
• Large tubes	171 mm (6+3⁄4 in), 24 off
Boiler pressure	16 bar (16.3 kgf/cm2; 232 psi)
Heating surface:
• Firebox	16.9 m2 (182 sq ft)
• Tubes	147 m2 (1,580 sq ft)
• Flues	83 m2 (890 sq ft)
• Total surface	246.9 m2 (2,658 sq ft)
Cylinders	Three
Cylinder size	500 mm × 660 mm (19+11⁄16 in × 26 in)
Valve gear	Walschaerts (Heusinger)
Loco brake	Knorr, single-chamber, compressed air brakes acting on both sides of coupled wheels + compressed air quick-acting brakes on driving and tender wheels

Type and origin
Type and origin
Power type	Steam
Builder	Berliner Maschinenbau
Serial number	11000, 11308–11361
Build date	1939–1940
Total produced	55

DRB Class 01.10
DB Class 011, 012
DRB Class 01.10; DB Class 011, 012
	Preserved 01 1102 with restored streamlining
Power type
Type and origin
Power type	Steam
Builder	Berliner Maschinenbau
Serial number	11000, 11308–11361
Build date	1939–1940
Total produced	55
Configuration:;
Specifications
Configuration:;
• Whyte	4-6-2
• UIC	2′C1′ h3
• German	S 36.20
Driver	Divided: inside cylinder on 1st,; outside cylinders on 2nd
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Leading dia.	1,000 mm (3 ft 3+3⁄8 in)
Driver dia.	2,000 mm (6 ft 6+3⁄4 in)
Trailing dia.	1,250 mm (4 ft 1+1⁄4 in)
Tender wheels	1,000 mm (3 ft 3+3⁄8 in)
Wheelbase:
• Axle spacing; (Asymmetrical)	2,200 mm (7 ft 2+5⁄8 in) +; 1,800 mm (5 ft 10+7⁄8 in) +; 2,300 mm (7 ft 6+1⁄2 in) +; 2,300 mm (7 ft 6+1⁄2 in) +; 3,800 mm (12 ft 5+5⁄8 in);
• Engine	12,400 mm (40 ft 8+1⁄4 in)
• Tender	6,000 mm (19 ft 8+1⁄4 in)
• incl. tender	20,370 mm (66 ft 10 in)
Length:;
• Over headstocks	22,830 mm (74 ft 10+3⁄4 in)
• Over buffers	24,130 mm (79 ft 2 in)
Axle load	20.1 tonnes (19.8 long tons; 22.2 short tons)
Adhesive weight	60.2 tonnes (59.2 long tons; 66.4 short tons)
Empty weight	103.1 tonnes (101.5 long tons; 113.6 short tons)
Service weight	114.3 tonnes (112.5 long tons; 126.0 short tons)
Tender type	2′3 T 38
Fuel capacity	10.0 tonnes (9.8 long tons; 11.0 short tons) coal or; 13,500 L (2,970 imp gal; 3,570 US gal) fuel oil
Water cap.	38.0 m3 (8,400 imp gal; 10,000 US gal)
Firebox:
• Grate area	4.32 m2 (46.5 sq ft)
Boiler:;
• Tube plates	6,800 mm (267+11⁄16 in)
• Small tubes	70 mm (2+3⁄4 in), 106 off
• Large tubes	171 mm (6+3⁄4 in), 24 off
Boiler pressure	16 bar (16.3 kgf/cm2; 232 psi)
Heating surface:
• Firebox	16.9 m2 (182 sq ft)
• Tubes	147 m2 (1,580 sq ft)
• Flues	83 m2 (890 sq ft)
• Total surface	246.9 m2 (2,658 sq ft)
Cylinders	Three
Cylinder size	500 mm × 660 mm (19+11⁄16 in × 26 in)
Valve gear	Walschaerts (Heusinger)
Loco brake	Knorr, single-chamber, compressed air brakes acting on both sides of coupled wheels + compressed air quick-acting brakes on driving and tender wheels
Maximum speed
Performance figures
Maximum speed	Forwards: 150 or 140 km/h (93 or 87 mph); Reverse: 50 km/h (31 mph);
Indicated power	1,559 kW (2,120 PS; 2,090 hp); 1,728 kW (2,350 PS; 2,320 hp) (coal, with Austausch boiler); 1,817 kW (2,470 PS; 2,440 hp) (oil, with Austausch boiler);
Numbers
Career
Numbers	DRG: 01 1001, 01 1052 – 01 1105; DB (from 1968): 011 062-7 ... 011 099-9, 012 001-4, 012 052-7 ... 012 105-3;
Retired	1975
Disposition	10 preserved, remainder scrapped

The Deutsche Reichsbahn Class 01.10 was a series of express steam locomotives. Developed at the end of the 1930s it was part of the standard locomotive programme (Einheitsdampflokomotiven). Modernized in the 1950s, the class lasted almost until the end of steam operation at the West German Deutsche Bundesbahn (DB).