Saarbruck 2-4-0 Locomotives in Germany


Class Details by Steve Llanso of Sweat House Media

Class P2 (Locobase 15608)

Data from diagram No 61, Societe Alsacienne de Constructions Mecaniques from locomotive book supplied by Dany Machi up at [] as

Diagrammes des machines SACM construites a GRAFENSTADEN (October 2007).

Typical Continental six-wheeler of the period.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassP2
Locobase ID15608
RailroadSaarbruck
CountryGermany
Whyte2-4-0
Number in Class10
Road Numbers153-162
GaugeStd
Number Built10
BuilderSACM
Year1878
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 8.20 / 2.50
Engine Wheelbase (ft / m)14.44 / 4.40
Ratio of driving wheelbase to overall engine wheelbase 0.57
Overall Wheelbase (engine & tender) (ft / m)41.93 / 12.78
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)81,902 / 37,150
Tender Loaded Weight (lbs / kg)59,525 / 27,000
Total Engine and Tender Weight (lbs / kg)141,427 / 64,150
Tender Water Capacity (gals / ML)2772 / 10.50
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 4.40 / 4
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)68.10 / 1730
Boiler Pressure (psi / kPa)142.10 / 9.80
High Pressure Cylinders (dia x stroke) (in / mm)16.54" x 22.05" / 420x560
Tractive Effort (lbs / kg)10,699 / 4852.99
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)162 - 1.772" / 45
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)12.20 / 3.72
Firebox Area (sq ft / m2)67.06 / 6.23
Grate Area (sq ft / m2)19.27 / 1.79
Evaporative Heating Surface (sq ft / m2)1017 / 94.52
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1017 / 94.52
Evaporative Heating Surface/Cylinder Volume185.47
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2738
Same as above plus superheater percentage2738
Same as above but substitute firebox area for grate area9529
Power L13977
Power MT

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