Baden I b

The Baden Class I b locomotives of the Grand Duchy of Baden State Railways were built for the pontoon bridges from Heidelberg to Speyer. Altogether three of these engines were on duty, of which two had been taken over from the Palatinate Railway in 1874. A third machine was procured directly from the Maschinenbau-Gesellschaft Karlsruhe in 1893.

Baden I b
DRG Class 88.75
Number(s)
  • G.Bad.St.E.: 402, 403, 240
  • DRG: 88 7501 – 88 7503
Quantity3
ManufacturerMBG Karlsruhe
Year(s) of manufacture1874–1893
Retired1926
Wheel arrangement0-4-0T
Axle arrangementB n2t
TypeGt 22.12
Track gauge1,435 mm (4 ft 8 1⁄2 in)
Length over buffers6,925 mm (22 ft 8 3⁄4 in)
Height3,960 mm (12 ft 11 7⁄8 in)
Overall wheelbase2,100 mm (82 3⁄4 in)
Service weight24.2 t (23.8 long tons; 26.7 short tons)
Adhesive weight24.2 t (23.8 long tons; 26.7 short tons)
Axle load12.1 t (11.9 long tons; 13.3 short tons)
Top speed45 km/h (28 mph)
Driving wheel diameter
  • 1 b1: 940 mm (3 ft 1 in)
  • 1 b2: 960 mm (3 ft 1 3⁄4 in)
Valve gearStephenson
No. of cylinders2
Cylinder bore280 mm (11 in)
Piston stroke460 mm (18 1⁄8 in)
Boiler Overpressure10 kgf/cm2 (981 kPa; 142 lbf/in2)
No. of heating tubes125
Heating tube length3,140 mm (10 ft 3 1⁄2 in)
Grate area0.73 m2 (7.9 sq ft)
Radiative heating area4.95 m2 (53.3 sq ft)
Evaporative heating area46.95 m2 (505.4 sq ft)
Water capacity2.25 m3 (490 imp gal; 590 US gal)
Fuel700 kg (1,500 lb) of coal

All three locomotives were taken over by the Deutsche Reichsbahn as DRG Class 88.75. Shortly thereafter they were retired, however, as locomotives of the Bavarian Class D VI took over pontoon bridge operations.

This class should not be confused with the earlier class with the same designation which is usually referred to as the Baden I b (old) to distinguish it.

Sources
  • Lokomotiv-Archiv Baden, Hermann Lohr, Georg Thielmann, transpress Berlin, ISBN 3-344-00210-4, 1988.

See also


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