Württemberg B and B2

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:​ • Firebox0.98 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 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.

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

• List of DRG locomotives and railbuses
• List of Württemberg locomotives and railbuses

References

• Lohr, Hermann; Thielmann, Georg (1988). Lokomotiven württembergischer Eisenbahnen (EFA 2.6) (in German). Düsseldorf: Alba. pp. 63–67, 158. ISBN 3-87094-117-0.