Houilleres de Ronchamp 0-4-0 Locomotives in Germany


Class Details by Steve Llanso of Sweat House Media

Class 11 (Locobase 15607)

Data from diagram No 106, Societe Alsacienne de Construction Mecaniques from SACM locomotive book supplied by Dany Machi up at [link] as

Diagrammes des machines SACM construites a GRAFENSTADEN (October 2007). Works number was 7389 in 1925.

"Ronchamp" refers to a large coal-mining company in the Haute-Saone near the Swiss border. Its reserves consisted mainly of "charbon", a grade of coal with a carbon percentage between anthracite (the highest at between 93 and 97%) and lignite (50-60% carbon).

Principal Dimensions by Steve Llanso of Middle Run Media
Class11
Locobase ID15607
RailroadHouilleres de Ronchamp
CountryGermany
Whyte0-4-0T
Number in Class1
Road Numbers11
GaugeStd
Number Built1
BuilderSACM
Year1925
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 3.94 / 1.20
Engine Wheelbase (ft / m) 3.94 / 1.20
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m) 3.94 / 1.20
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)18,960 / 8600
Engine Weight (lbs / kg)18,960 / 8600
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)251 / 0.95
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)16 / 8
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)23.60 / 600
Boiler Pressure (psi / kPa)127.60 / 880
High Pressure Cylinders (dia x stroke) (in / mm)8.66" x 11.81" / 220x300
Tractive Effort (lbs / kg)4070 / 1846.12
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.66
Heating Ability
Tubes (number - dia) (in / mm)78 - 1.378" / 35
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 7.55 / 2.30
Firebox Area (sq ft / m2)24.76 / 2.30
Grate Area (sq ft / m2) 4.41 / 0.41
Evaporative Heating Surface (sq ft / m2)237 / 22.02
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)237 / 22.02
Evaporative Heating Surface/Cylinder Volume294.37
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation563
Same as above plus superheater percentage563
Same as above but substitute firebox area for grate area3159
Power L12249
Power MT523.02

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