DRG Class 03

Specifications
Specifications
Configuration:;
• Whyte	4-6-2
• UIC	2′C1′ h2
• German	03 001–122: S 36.17; 03 123–298: S 36.18;
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Leading dia.	03 001–162: 850 mm (33+1⁄2 in); 03 163–298: 1,000 mm (39+3⁄8 in);
Driver dia.	2,000 mm (78+3⁄4 in)
Trailing dia.	1,250 mm (49+1⁄4 in)
Tender wheels	1,000 mm (39+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) +; 2,250 mm (7 ft 4+5⁄8 in) +; 2,250 mm (7 ft 4+5⁄8 in) +; 3,500 mm (11 ft 5+3⁄4 in);
• Engine	12,000 mm (39 ft 4+1⁄2 in)
• Tender	5,700 mm (18 ft 8+3⁄8 in)
• Tender bogie	1,900 mm (6 ft 2+3⁄4 in)
• incl. tender	20,225 mm (66 ft 4+1⁄4 in)
Length:;
• Over headstocks	22,605 mm (74 ft 2 in)
• Over buffers	23,905 mm (78 ft 5+1⁄8 in)
Height	4,550 mm (14 ft 11+1⁄8 in)
Axle load	03 001–162: 17.7 tonnes (17.4 long tons; 19.5 short tons); 03 163–298: 18.1 tonnes (17.8 long tons; 20.0 short tons);
Adhesive weight	03 001–122: 53.0 tonnes (52.2 long tons; 58.4 short tons); 03 123–298: 54.3 tonnes (53.4 long tons; 59.9 short tons);
Empty weight	03 001–122: 90.4 tonnes (89.0 long tons; 99.6 short tons); 03 123–298: 91.0 tonnes (89.6 long tons; 100.3 short tons);
Service weight	03 001–122: 99.6 tonnes (98.0 long tons; 109.8 short tons); 03 123–298: 100.3 tonnes (98.7 long tons; 110.6 short tons);
Tender type	03 001–003: 2′2 T 30; 03 004–122: 2′2′ T 32; 03 123–298: 2′2′ T 34;
Fuel type	Coal
Fuel capacity	10 tonnes (9.8 long tons; 11 short tons)
Water cap.	30 or 32 or 34 m3 (1,100 or 1,100 or 1,200 cu ft)
Firebox:
• Grate area	03 001–162: 4.05 m2 (43.6 sq ft); 03 163–298: 4.09 m2 (44.0 sq ft);
Boiler:;
• Pitch	3,100 mm (10 ft 2 in)
• Tube plates	6,800 mm (22 ft 3+3⁄4 in)
• Small tubes	03 001–162: 70 mm (2+3⁄4 in), 84 off; 03 163–298: 70 mm (2+3⁄4 in), 85 off;
• Large tubes	171 mm (6+3⁄4 in), 20 off
Boiler pressure	16.0 bar (16.3 kgf/cm2; 232 psi)
Heating surface:
• Firebox	16.10 m2 (173.3 sq ft)
• Tubes	116.50 or 117.88 m2 (1,254.0 or 1,268.8 sq ft)
• Flues	69.62 m2 (749.4 sq ft)
• Total surface	202.22 or 203.65 m2 (2,176.7 or 2,192.1 sq ft)
Superheater:;
• Heating area	03 001–162: 70.0 m2 (753 sq ft); 03 163–298: 72.2 m2 (777 sq ft);
Cylinders	Two, outside
Cylinder size	570 mm × 660 mm (22+7⁄16 in × 26 in); on 03 001-003 originally:; 600 mm × 660 mm (23+5⁄8 in × 26 in)
Valve gear	outside Walschaerts
Train heating	Steam
Loco brake	automatic, single-chamber Knorr compressed air brakes to 03 162; coupled and bogie wheels, one-sided, from 03 163; both sides of coupled wheels and one-sided on trailing wheels

Type and origin
Type and origin
Power type	Steam
Builder	Borsig (116); Berliner Maschinenbau (64); Henschel & Sohn (66); Krupp (52);
Build date	1930–1937
Total produced	298

DRG Class 03
DB Class 003
PKP class Pm2
DRG Class 03; DB Class 003; PKP class Pm2
	03 001 at the 2002 Dresden Steam Locomotive Festival
Power type
Type and origin
Power type	Steam
Builder	Borsig (116); Berliner Maschinenbau (64); Henschel & Sohn (66); Krupp (52);
Build date	1930–1937
Total produced	298
Configuration:;
Specifications
Configuration:;
• Whyte	4-6-2
• UIC	2′C1′ h2
• German	03 001–122: S 36.17; 03 123–298: S 36.18;
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Leading dia.	03 001–162: 850 mm (33+1⁄2 in); 03 163–298: 1,000 mm (39+3⁄8 in);
Driver dia.	2,000 mm (78+3⁄4 in)
Trailing dia.	1,250 mm (49+1⁄4 in)
Tender wheels	1,000 mm (39+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) +; 2,250 mm (7 ft 4+5⁄8 in) +; 2,250 mm (7 ft 4+5⁄8 in) +; 3,500 mm (11 ft 5+3⁄4 in);
• Engine	12,000 mm (39 ft 4+1⁄2 in)
• Tender	5,700 mm (18 ft 8+3⁄8 in)
• Tender bogie	1,900 mm (6 ft 2+3⁄4 in)
• incl. tender	20,225 mm (66 ft 4+1⁄4 in)
Length:;
• Over headstocks	22,605 mm (74 ft 2 in)
• Over buffers	23,905 mm (78 ft 5+1⁄8 in)
Height	4,550 mm (14 ft 11+1⁄8 in)
Axle load	03 001–162: 17.7 tonnes (17.4 long tons; 19.5 short tons); 03 163–298: 18.1 tonnes (17.8 long tons; 20.0 short tons);
Adhesive weight	03 001–122: 53.0 tonnes (52.2 long tons; 58.4 short tons); 03 123–298: 54.3 tonnes (53.4 long tons; 59.9 short tons);
Empty weight	03 001–122: 90.4 tonnes (89.0 long tons; 99.6 short tons); 03 123–298: 91.0 tonnes (89.6 long tons; 100.3 short tons);
Service weight	03 001–122: 99.6 tonnes (98.0 long tons; 109.8 short tons); 03 123–298: 100.3 tonnes (98.7 long tons; 110.6 short tons);
Tender type	03 001–003: 2′2 T 30; 03 004–122: 2′2′ T 32; 03 123–298: 2′2′ T 34;
Fuel type	Coal
Fuel capacity	10 tonnes (9.8 long tons; 11 short tons)
Water cap.	30 or 32 or 34 m3 (1,100 or 1,100 or 1,200 cu ft)
Firebox:
• Grate area	03 001–162: 4.05 m2 (43.6 sq ft); 03 163–298: 4.09 m2 (44.0 sq ft);
Boiler:;
• Pitch	3,100 mm (10 ft 2 in)
• Tube plates	6,800 mm (22 ft 3+3⁄4 in)
• Small tubes	03 001–162: 70 mm (2+3⁄4 in), 84 off; 03 163–298: 70 mm (2+3⁄4 in), 85 off;
• Large tubes	171 mm (6+3⁄4 in), 20 off
Boiler pressure	16.0 bar (16.3 kgf/cm2; 232 psi)
Heating surface:
• Firebox	16.10 m2 (173.3 sq ft)
• Tubes	116.50 or 117.88 m2 (1,254.0 or 1,268.8 sq ft)
• Flues	69.62 m2 (749.4 sq ft)
• Total surface	202.22 or 203.65 m2 (2,176.7 or 2,192.1 sq ft)
Superheater:;
• Heating area	03 001–162: 70.0 m2 (753 sq ft); 03 163–298: 72.2 m2 (777 sq ft);
Cylinders	Two, outside
Cylinder size	570 mm × 660 mm (22+7⁄16 in × 26 in); on 03 001-003 originally:; 600 mm × 660 mm (23+5⁄8 in × 26 in)
Valve gear	outside Walschaerts
Train heating	Steam
Loco brake	automatic, single-chamber Knorr compressed air brakes to 03 162; coupled and bogie wheels, one-sided, from 03 163; both sides of coupled wheels and one-sided on trailing wheels
Maximum speed
Performance figures
Maximum speed	03 001–162: 120 km/h (75 mph); 03 163–298: 130 km/h (81 mph); Reverse: 50 km/h (31 mph);
Indicated power	1,970 PS (1,449 kW; 1,943 hp)
Tractive effort	161.8 kN (36,400 lbf)
Numbers
Career
Numbers	03 001 – 03 298

The Class 03 steam engines were standard express train locomotives (Einheitslokomotiven) in service with the Deutsche Reichsbahn.