Ruegener Kleinbahn Articulated Locomotives in Germany


Class Details by Steve Llanso of Sweat House Media

Class 31 / 99. 4521 (Locobase 6531)

Data from Christian Lindecke's [] (accessed 26 May 2005), supplemented and corrected by the Rugen website []

(accessed 29 December 2006) . Lindecke tells us that the 96.8 km (60.1 sm) of Rugen lines were built between 1896-1899 to link Bergen and Altenkirchen and Gohren and Altefahr.

In order these pocket Mallets arrived from Vulkan's Stettin.

Road # Year Works number

31 1902 2010

32 1902 2013

33 1905 2172

34 1908 2451

For some reason, the fifth vierkuppler came from Hanomag in 1911 (works number 6227).

All of this class continued in operation until 1965-1966.

Principal Dimensions by Steve Llanso of Sweat House Media

Class31 / 99. 4521
Locobase ID6531
RailroadRuegener Kleinbahn
CountryGermany
Whyte0-4-4-0T
Number in Class5
Road Numbers31-35 / 99 4521-99 4525
Gauge75 cm
Number Built5
BuilderVulkan
Year1902
Valve GearHeusinger
Locomotive Length and Weight
Driver Wheelbase (ft / m) 3.61 / 1.10
Engine Wheelbase (ft / m)12.39 / 3.77
Ratio of driving wheelbase to overall engine wheelbase 0.29
Overall Wheelbase (engine & tender) (ft / m)12.39 / 3.77
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)45,856 / 20,800
Engine Weight (lbs / kg)45,856 / 20,800
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)45,856 / 20,800
Tender Water Capacity (gals / ML)528 / 2
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 0.80 / 1
Minimum weight of rail (calculated) (lb/yd / kg/m)19 / 9.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)25.60 / 650
Boiler Pressure (psi / kPa)174 / 12
High Pressure Cylinders (dia x stroke) (in / mm)8.86" x 14.17" / 225x360
Low Pressure Cylinders (dia x stroke) (in / mm)13.39" x 14.17" / 340x360
Tractive Effort (lbs / kg)8939 / 4054.67
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.13
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10.30 / 3.14
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2) 7.85 / 0.73
Evaporative Heating Surface (sq ft / m2)376 / 34.90
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)376 / 34.90
Evaporative Heating Surface/Cylinder Volume371.86
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1366
Same as above plus superheater percentage1366
Same as above but substitute firebox area for grate area
Power L1
Power MT

All material Copyright © SteamLocomotive.com
Wes Barris