Wurttembergische 0-8-0 Locomotives in Germany


Class Details by Steve Llanso of Sweat House Media

Class T4 / BR 92.1 (Locobase 5830)

Christian Lindecke [] (visited 28 November 2003) for data, supplemented by [], last accessed 14 May 2011. Works numbers included 3370 in 1907 to 3523 in 1909.

Lindecke describes these as among the most efficient of their wheel arrangement in their time. He notes the relatively tall drivers.

Once the DRG absorbed all eight as BR 92 101-108, the engines served for decades more, through World War II, only being taken out of mainline service in 1946-1948.

Additional data from US Military Railway Service Equipment Data Book -- German Locomotives supplied by Allen Stanley from his extensive Rail Data Exchange in March 2004


Class T6 / BR 92.0 (Locobase 6351)

Christian Lindecke [] (visited 14 November 2004), supplemented by Albert Gieseler at [], last accessed 9 May 2011.

Locobase's translation of the German infers that these were follow-ons to the T4s, but with significant changes: the boiler was superheated to high degree, the cylinder diameter dropped as did the driver diameter. Their tonnage rating was 320 tons up a 1/2% grade at 40 km/h (28 mph). Gieseler's data shows that the tube and flue count was way out of the ordinary; given that all but 4 are described as flues, Locobase infers a fully superheated boiler

When World War I ended, one of the class was passed along to France as a war reparation. The others were grouped into the DRG's BauReihe 92 0 class. Ten survived World War II and the last was withdrawn in 1948.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassT4 / BR 92.1T6 / BR 92.0
Locobase ID5830 6351
RailroadWurttembergische (Wurttemberg) StaatsbahnWurttembergische (Wurttemberg) Staatsbahn
CountryGermanyGermany
Whyte0-8-0T0-8-0T
Number in Class812
Road Numbers851-858 / BR 92 101-1081401-12 / BR 92 001- 012
GaugeStdStd
Number Built812
BuilderEsslingenEsslingen
Year19061916
Valve GearHeusinger
Locomotive Length and Weight
Driver Wheelbase (ft / m)15.26 / 4.65
Engine Wheelbase (ft / m)15.26 / 4.6516.40 / 5
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m)15.26 / 4.6516.40 / 5
Axle Loading (Maximum Weight per Axle) (lbs / kg)35,935 / 16,30033,290 / 15,100
Weight on Drivers (lbs / kg)142,198 / 64,500132,277 / 60,000
Engine Weight (lbs / kg)142,198 / 64,500132,277 / 60,000
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)142,198 / 64,500132,277 / 60,000
Tender Water Capacity (gals / ML)1584 / 62112 / 8
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 1.70 / 2 3.90 / 4
Minimum weight of rail (calculated) (lb/yd / kg/m)59 / 29.5055 / 27.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)54.30 / 138045.30 / 1151
Boiler Pressure (psi / kPa)203.10 / 14188.50 / 13
High Pressure Cylinders (dia x stroke) (in / mm)20.87" x 24.09" / 530x61219.69" x 22.05" / 500x560
Tractive Effort (lbs / kg)33,359 / 15131.4130,237 / 13715.29
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.26 4.37
Heating Ability
Tubes (number - dia) (in / mm)266 - 1.772" / 454 - 2.756" / 70
Flues (number - dia) (in / mm)84 - 2.756" / 70
Flue/Tube length (ft / m)13.12 / 411.81 / 3.60
Firebox Area (sq ft / m2)104.37 / 9.7075.32 / 7
Grate Area (sq ft / m2)22.38 / 2.0816.14 / 1.50
Evaporative Heating Surface (sq ft / m2)1543 / 143.40768 / 71.38
Superheating Surface (sq ft / m2)473 / 43.96
Combined Heating Surface (sq ft / m2)1543 / 143.401241 / 115.34
Evaporative Heating Surface/Cylinder Volume161.7798.83
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation45453042
Same as above plus superheater percentage45454198
Same as above but substitute firebox area for grate area21,19819,593
Power L139799892
Power MT246.76659.47

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