DR 18 201

Specifications
Specifications
Configuration:;
• Whyte	4-6-2
• UIC	2′C1′ h3
• German	S 36.20
Driver	Divided: inner on 1st,; outer on 2nd
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Leading dia.	1,100 mm (3 ft 7+1⁄4 in)
Driver dia.	2,300 mm (7 ft 6+1⁄2 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)	2,350 mm (7 ft 8+1⁄2 in) +; 2,100 mm (6 ft 10+5⁄8 in) +; 2,550 mm (8 ft 4+3⁄8 in) +; 2,550 mm (8 ft 4+3⁄8 in) +; 3,835 mm (12 ft 7 in) =;
• Engine	13,385 mm (43 ft 11 in)
• Tender	1,900 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);
• incl. tender	21,510 mm (70 ft 6+7⁄8 in)
Length:;
• Over headstocks	23,855 mm (78 ft 3+1⁄8 in)
• Over buffers	25,145 mm (82 ft 6 in)
Height	4,550 mm (14 ft 11+1⁄8 in)
Axle load	20.7 t (20.4 long tons; 22.8 short tons)
Adhesive weight	61.2 t (60.2 long tons; 67.5 short tons)
Empty weight	102.5 t (100.9 long tons; 113.0 short tons) (without tender)
Service weight	113.6 t (111.8 long tons; 125.2 short tons)
Total weight	172 t (169 long tons; 190 short tons)
Tender type	2′2′ T 34 + additional tender
Fuel type	Oil
Fuel capacity	13.5 m3 (3,000 imp gal; 3,600 US gal)
Water cap.	34 m3 (7,500 imp gal; 9,000 US gal)
Firebox:
• Grate area	4.23 m2 (45.5 sq ft)
Boiler:;
• Pitch	3,200 mm (10 ft 6 in)
• Tube plates	5,700 mm (18 ft 8+3⁄8 in)
• Small tubes	54 mm (2+1⁄8 in), 112 off
• Large tubes	143 mm (5+5⁄8 in), 36 off
Boiler pressure	16 bar (16.3 kgf/cm2; 232 psi)
Heating surface:
• Firebox	21.3 m2 (229 sq ft)
• Tubes	98.3 m2 (1,058 sq ft)
• Flues	86.7 m2 (933 sq ft)
• Total surface	206.3 m2 (2,221 sq ft)
Superheater:;
• Heating area	83.8 m2 (902 sq ft)
Cylinders	Three
Cylinder size	520 mm × 660 mm (20+1⁄2 in × 26 in)
Valve gear	Heusinger (Walschaerts)
Train heating	Steam
Loco brake	Air
Train brakes	Air
Safety systems	PZB
Couplers	Screw Links

Type and origin
Type and origin
Power type	Steam
Builder	RAW Meiningen
Serial number	89
Build date	1961
Total produced	1

DR 18 201
DR 18 201
	18 201 in June 2007
Power type
Type and origin
Power type	Steam
Builder	RAW Meiningen
Serial number	89
Build date	1961
Total produced	1
Configuration:;
Specifications
Configuration:;
• Whyte	4-6-2
• UIC	2′C1′ h3
• German	S 36.20
Driver	Divided: inner on 1st,; outer on 2nd
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Leading dia.	1,100 mm (3 ft 7+1⁄4 in)
Driver dia.	2,300 mm (7 ft 6+1⁄2 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)	2,350 mm (7 ft 8+1⁄2 in) +; 2,100 mm (6 ft 10+5⁄8 in) +; 2,550 mm (8 ft 4+3⁄8 in) +; 2,550 mm (8 ft 4+3⁄8 in) +; 3,835 mm (12 ft 7 in) =;
• Engine	13,385 mm (43 ft 11 in)
• Tender	1,900 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);
• incl. tender	21,510 mm (70 ft 6+7⁄8 in)
Length:;
• Over headstocks	23,855 mm (78 ft 3+1⁄8 in)
• Over buffers	25,145 mm (82 ft 6 in)
Height	4,550 mm (14 ft 11+1⁄8 in)
Axle load	20.7 t (20.4 long tons; 22.8 short tons)
Adhesive weight	61.2 t (60.2 long tons; 67.5 short tons)
Empty weight	102.5 t (100.9 long tons; 113.0 short tons) (without tender)
Service weight	113.6 t (111.8 long tons; 125.2 short tons)
Total weight	172 t (169 long tons; 190 short tons)
Tender type	2′2′ T 34 + additional tender
Fuel type	Oil
Fuel capacity	13.5 m3 (3,000 imp gal; 3,600 US gal)
Water cap.	34 m3 (7,500 imp gal; 9,000 US gal)
Firebox:
• Grate area	4.23 m2 (45.5 sq ft)
Boiler:;
• Pitch	3,200 mm (10 ft 6 in)
• Tube plates	5,700 mm (18 ft 8+3⁄8 in)
• Small tubes	54 mm (2+1⁄8 in), 112 off
• Large tubes	143 mm (5+5⁄8 in), 36 off
Boiler pressure	16 bar (16.3 kgf/cm2; 232 psi)
Heating surface:
• Firebox	21.3 m2 (229 sq ft)
• Tubes	98.3 m2 (1,058 sq ft)
• Flues	86.7 m2 (933 sq ft)
• Total surface	206.3 m2 (2,221 sq ft)
Superheater:;
• Heating area	83.8 m2 (902 sq ft)
Cylinders	Three
Cylinder size	520 mm × 660 mm (20+1⁄2 in × 26 in)
Valve gear	Heusinger (Walschaerts)
Train heating	Steam
Loco brake	Air
Train brakes	Air
Safety systems	PZB
Couplers	Screw Links
Maximum speed
Performance figures
Maximum speed	182 km/h (113 mph)
Indicated power	2,150 PS (1,580 kW; 2,120 hp)
Operators
Career
Operators	Deutsche Reichsbahn
Numbers	18 201; 02 0201-0 from 1970;

The German express locomotive, number 18 201 of the Deutsche Reichsbahn in East Germany, appeared in 1960–61 at Meiningen Steam Locomotive Works as a conversion of the Henschel-Wegmann train locomotive 61 002, the tender from 44 468 and parts of H 45 024 and Class 41. It is the fastest operational steam locomotive in the world.