Württemberg B and B2

The Württemberg Class B and Class B2 engines were steam locomotives with the Royal Württemberg State Railways (Königlich Württembergische Staats-Eisenbahnen) first built in 1868 by the Maschinenfabrik Esslingen ('Esslingen engineering works') in Esslingen in the former Kingdom of Württemberg in southern Germany.

Württemberg B/B2
Type and origin
BuilderEsslingen
Build date1868–1878
Total produced86
Specifications
Configuration:
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 • Whyte2-4-0
 • UIC1B n2
Gauge1,435 mm (4 ft 8+1⁄2 in)
Leading dia.930 mm (3 ft 5⁄8 in)
Driver dia.1,530 mm (5 ft 1⁄4 in)
Length:
​
 • Over beams~ 13,120 mm (43 ft 1⁄2 in)
Axle load11.0 tonnes (10.8 long tons; 12.1 short tons)
Adhesive weight20.0 tonnes (19.7 long tons; 22.0 short tons)
Service weight29.2 tonnes (28.7 long tons; 32.2 short tons)
Water cap.6.5 m3 (1,400 imp gal; 1,700 US gal)
Boiler pressure9 kgf/cm2 (883 kPa; 128 lbf/in2)
Heating surface:
 • Firebox		0.98 m2 (10.5 sq ft)
 • Evaporative102.58 m2 (1,104.2 sq ft)
Cylinder size408 mm (16+1⁄16 in)
Piston stroke561 mm (22+1⁄16 in)

The engines had a Crampton boiler, an inside Allan valve gear and, for the first time in Württemberg, a Prüsmann chimney. They were equipped with 2 T 6.5 tenders.

See also
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