Broltalbahn 0-6-0 Locomotives in Germany

Class Details by Steve Llanso of Sweat House Media

Class K.33.6 / BR 99.46 (Locobase 8538)

Data from [], accessed 7 July 2007 (link later changed to []).

Coming from Jung as works #110 to serve the BB kleinbahn in the Thuringer Wald in eastern Germany, this little tank later operated on the Trusebahn. When the East German Deutsche Reichsbahn was formed in the late 1940s, it was renumbered as shown.

Last running in regular service in 1962, it was withdrawn in 1965.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassK.33.6 / BR 99.46
Locobase ID8538
Number in Class1
Road Numbers6/99 4601
Gauge75 cm
Number Built1
Valve GearAllan
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)40,785 / 18,500
Engine Weight (lbs / kg)40,785 / 18,500
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)40,785 / 18,500
Tender Water Capacity (gals / ML)660 / 2.50
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 0.80 / 1
Minimum weight of rail (calculated) (lb/yd / kg/m)23 / 11.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)28.30 / 720
Boiler Pressure (psi / kPa)174 / 12
High Pressure Cylinders (dia x stroke) (in / mm)11.81" x 13.78" / 300x350
Tractive Effort (lbs / kg)10,045 / 4556.34
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.06
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2) 7.32 / 0.68
Evaporative Heating Surface (sq ft / m2)447 / 41.50
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)447 / 41.50
Evaporative Heating Surface/Cylinder Volume255.85
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1274
Same as above plus superheater percentage1274
Same as above but substitute firebox area for grate area
Power L1
Power MT

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