Harzer Schmalspur Bahnen 0-4-0 Locomotives in Germany


Class Details by Steve Llanso of Sweat House Media

Class K22.12 / BR 99.52 (Locobase 3782)

Data from [], supplemented by [], last accessed 9 May 2011.

Although 13 years later than the K22.10, this engine had no superheater and a lower boiler pressure. Could the K22.10 have demanded too much maintenance effort?

Principal Dimensions by Steve Llanso of Sweat House Media

ClassK22.12 / BR 99.52
Locobase ID3782
RailroadHarzer Schmalspur Bahnen
CountryGermany
Whyte0-4-0T
Number in Class1
Road Numbers99.52
GaugeMetre
Number Built1
BuilderOrenstein & Koppel
Year1938
Valve GearHeusinger
Locomotive Length and Weight
Driver Wheelbase (ft / m) 4.92 / 1.50
Engine Wheelbase (ft / m) 4.92 / 1.50
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m) 4.92 / 1.50
Axle Loading (Maximum Weight per Axle) (lbs / kg)24,696 / 11,202
Weight on Drivers (lbs / kg)49,604 / 22,500
Engine Weight (lbs / kg)49,604 / 22,500
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)49,604 / 22,500
Tender Water Capacity (gals / ML)792 / 3
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)1 / 1
Minimum weight of rail (calculated) (lb/yd / kg/m)41 / 20.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)33.90 / 861
Boiler Pressure (psi / kPa)174 / 12
High Pressure Cylinders (dia x stroke) (in / mm)13.39" x 15.75" / 340x400
Tractive Effort (lbs / kg)12,320 / 5588.26
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.03
Heating Ability
Tubes (number - dia) (in / mm)176 - 1.772" / 45
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 6.23 / 1.90
Firebox Area (sq ft / m2)46.27 / 4.30
Grate Area (sq ft / m2)12.91 / 1.20
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 Volume174.14
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2246
Same as above plus superheater percentage2246
Same as above but substitute firebox area for grate area8051
Power L12598
Power MT230.93

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