DRB Class 41

Specifications
Specifications
Configuration:;
• Whyte	2-8-2
• UIC	1′D1′ h2
• German	G 46.18/G 46.20
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Leading dia.	1,000 mm (39+3⁄8 in)
Driver dia.	1,600 mm (63 in)
Trailing dia.	1,250 mm (49+1⁄4 in)
Tender wheels	1,000 mm (39+3⁄8 in)
Wheelbase:
• Axle spacing; (Asymmetrical)	3,000 mm (118+1⁄8 in) +; 1,850 mm (72+7⁄8 in) +; 1,850 mm (72+7⁄8 in) +; 1,850 mm (72+7⁄8 in) +; 3,500 mm (137+3⁄4 in) =;
• Engine	12,050 mm (39 ft 6+3⁄8 in)
• Tender	1,900 mm (74+3⁄4 in) +; 1,900 mm (74+3⁄4 in) +; 1,900 mm (74+3⁄4 in) =; 5,700 mm (224+3⁄8 in);
• incl. tender	20,175 mm (66 ft 2+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 (179+1⁄8 in)
Axle load	17.5 or 19.5 t (17.2 or 19.2 long tons; 19.3 or 21.5 short tons)
Adhesive weight	70.0 or 78.0 t (68.9 or 76.8 long tons; 77.2 or 86.0 short tons)
Empty weight	92.6 t (91.1 long tons; 102.1 short tons)
Service weight	101.9 t (100.3 long tons; 112.3 short tons)
Tender type	2′2′ T 34
Fuel type	Coal
Fuel capacity	10.0 t (9.8 long tons; 11.0 short tons)
Water cap.	34.0 m3 (7,500 imp gal; 9,000 US gal)
Firebox:
• Grate area	4.1 m2 (44 sq ft)
Boiler:;
• Pitch	3,100 mm (10 ft 2 in)
• Tube plates	6,800 mm (22 ft 3+3⁄4 in)
• Small tubes	70 mm (2+3⁄4 in), 85 off
• Large tubes	171 mm (6+3⁄4 in), 20 off
Boiler pressure	20 bar (20.4 kgf/cm2; 290 psi)
Heating surface:
• Firebox	16.2 m2 (174 sq ft)
• Tubes	117.9 m2 (1,269 sq ft)
• Flues	69.6 m2 (749 sq ft)
• Total surface	203.7 m2 (2,193 sq ft)
Superheater:;
• Heating area	72.2 m2 (777 sq ft)
Cylinders	Two, outside
Cylinder size	520 mm × 720 mm (20+1⁄2 in × 28+3⁄8 in)
Valve gear	Heusinger (Walschaerts)
Train heating	Steam
Loco brake	Knorr

Type and origin
Type and origin
Power type	Steam
Builder	Berliner Maschinenbau (25); Borsig (73); Maschinenfabrik Esslingen (35); Henschel & Sohn (86); Arnold Jung Lokomotivfabrik (40); Krauss-Maffei (18); Krupp (31); Orenstein & Koppel (21); Schichau-Werke (37);
Build date	1937–1941
Total produced	366

DRB Class 41
DRB Class 41
	41 360 at Dresden-Altstadt depot in 2003
Power type
Type and origin
Power type	Steam
Builder	Berliner Maschinenbau (25); Borsig (73); Maschinenfabrik Esslingen (35); Henschel & Sohn (86); Arnold Jung Lokomotivfabrik (40); Krauss-Maffei (18); Krupp (31); Orenstein & Koppel (21); Schichau-Werke (37);
Build date	1937–1941
Total produced	366
Configuration:;
Specifications
Configuration:;
• Whyte	2-8-2
• UIC	1′D1′ h2
• German	G 46.18/G 46.20
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Leading dia.	1,000 mm (39+3⁄8 in)
Driver dia.	1,600 mm (63 in)
Trailing dia.	1,250 mm (49+1⁄4 in)
Tender wheels	1,000 mm (39+3⁄8 in)
Wheelbase:
• Axle spacing; (Asymmetrical)	3,000 mm (118+1⁄8 in) +; 1,850 mm (72+7⁄8 in) +; 1,850 mm (72+7⁄8 in) +; 1,850 mm (72+7⁄8 in) +; 3,500 mm (137+3⁄4 in) =;
• Engine	12,050 mm (39 ft 6+3⁄8 in)
• Tender	1,900 mm (74+3⁄4 in) +; 1,900 mm (74+3⁄4 in) +; 1,900 mm (74+3⁄4 in) =; 5,700 mm (224+3⁄8 in);
• incl. tender	20,175 mm (66 ft 2+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 (179+1⁄8 in)
Axle load	17.5 or 19.5 t (17.2 or 19.2 long tons; 19.3 or 21.5 short tons)
Adhesive weight	70.0 or 78.0 t (68.9 or 76.8 long tons; 77.2 or 86.0 short tons)
Empty weight	92.6 t (91.1 long tons; 102.1 short tons)
Service weight	101.9 t (100.3 long tons; 112.3 short tons)
Tender type	2′2′ T 34
Fuel type	Coal
Fuel capacity	10.0 t (9.8 long tons; 11.0 short tons)
Water cap.	34.0 m3 (7,500 imp gal; 9,000 US gal)
Firebox:
• Grate area	4.1 m2 (44 sq ft)
Boiler:;
• Pitch	3,100 mm (10 ft 2 in)
• Tube plates	6,800 mm (22 ft 3+3⁄4 in)
• Small tubes	70 mm (2+3⁄4 in), 85 off
• Large tubes	171 mm (6+3⁄4 in), 20 off
Boiler pressure	20 bar (20.4 kgf/cm2; 290 psi)
Heating surface:
• Firebox	16.2 m2 (174 sq ft)
• Tubes	117.9 m2 (1,269 sq ft)
• Flues	69.6 m2 (749 sq ft)
• Total surface	203.7 m2 (2,193 sq ft)
Superheater:;
• Heating area	72.2 m2 (777 sq ft)
Cylinders	Two, outside
Cylinder size	520 mm × 720 mm (20+1⁄2 in × 28+3⁄8 in)
Valve gear	Heusinger (Walschaerts)
Train heating	Steam
Loco brake	Knorr
Maximum speed
Performance figures
Maximum speed	Forwards: 90 km/h (56 mph); Backwards: 50 km/h (31 mph);
Indicated power	1,900 PS (1,400 kW; 1,870 hp)
Numbers
Career
Numbers	41 001 – 41 366
Nicknames	Ochsenlok
Retired	1986
Disposition	21 preserved (five operational, nine static display, rest in varying states of repair), remainder scrapped

The German Class 41 steam locomotives were standard goods train engines (Einheitslokomotiven) operated by the Deutsche Reichsbahn (DRB) and built from 1937 to 1941.

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