Sud 4-6-2 Locomotives in France


Class Details by Steve Llanso of Sweat House Media

Class 3 001 (Locobase 10722)

Data from "" The Locomotive Magazine, Vol XV (15 July 1909), p. 129.

Principal Dimensions by Steve Llanso of Middle Run Media
Class3 001
Locobase ID10722
RailroadSud
CountryFrance
Whyte4-6-2
Number in Class12
Road Numbers3 001-3 012
GaugeStd
Number Built12
BuilderSACM
Year1908
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)13.45 / 4.10
Engine Wheelbase (ft / m)35.10 / 10.70
Ratio of driving wheelbase to overall engine wheelbase 0.38
Overall Wheelbase (engine & tender) (ft / m)59.22 / 18.05
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)120,961 / 54,867
Engine Weight (lbs / kg)201,599 / 91,444
Tender Loaded Weight (lbs / kg)98,000 / 44,452
Total Engine and Tender Weight (lbs / kg)299,599 / 135,896
Tender Water Capacity (gals / ML)5280 / 20
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 5.50 / 5
Minimum weight of rail (calculated) (lb/yd / kg/m)67 / 33.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)76.40 / 1940
Boiler Pressure (psi / kPa)227.70 / 1570
High Pressure Cylinders (dia x stroke) (in / mm)14.17" x 25.59" / 360x650
Low Pressure Cylinders (dia x stroke) (in / mm)24.41" x 25.59" / 620x650
Tractive Effort (lbs / kg)19,472 / 8832.36
Factor of Adhesion (Weight on Drivers/Tractive Effort) 6.21
Heating Ability
Tubes (number - dia) (in / mm)240 - 2.008" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)19.69 / 6
Firebox Area (sq ft / m2)172.16 / 16
Grate Area (sq ft / m2)43.04 / 4
Evaporative Heating Surface (sq ft / m2)2947 / 273.90
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)2947 / 273.90
Evaporative Heating Surface/Cylinder Volume630.95
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation9800
Same as above plus superheater percentage9800
Same as above but substitute firebox area for grate area39,201
Power L17965
Power MT435.51

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