DR 18 201

This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help improve this article by introducing more precise citations. (July 2017) (Learn how and when to remove this message)

DR 18 201
18 201 in June 2007
Type and origin Power type Steam Builder RAW Meiningen Serial number 89 Build date 1961 Total produced 1
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
Performance figures Maximum speed 175 km/h (109 mph) Indicated power 2,150 PS (1,580 kW; 2,120 hp)
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.