Sud 0-6-0 Locomotives in France

Class Details by Steve Llanso of Sweat House Media

Class A1 (Locobase 7600)

Data from a site that reproduces cigarette card pictures and adds dimension and area data -- [], last accessed 14 June 2006

The note accompanying this photograph says this was the only class of locomotives using separate tenders to enter service on France's narrow-gauge system.

Principal Dimensions by Steve Llanso of Middle Run Media

Locobase ID7600
Number in Class4
Road NumbersA1 - A4
Number Built4
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 9.35 / 2.85
Engine Wheelbase (ft / m) 9.35 / 2.85
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)48,502 / 22,000
Engine Weight (lbs / kg)48,502 / 22,000
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)27 / 13.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)47.20 / 1200
Boiler Pressure (psi / kPa)145 / 10
High Pressure Cylinders (dia x stroke) (in / mm)14.96" x 19.69" / 380x500
Low Pressure Cylinders (dia x stroke) (in / mm)15.75" x 19.69" / 400x500
Tractive Effort (lbs / kg)12,098 / 5487.57
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.01
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)10.76 / 1
Evaporative Heating Surface (sq ft / m2)737 / 68.50
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)737 / 68.50
Evaporative Heating Surface/Cylinder Volume183.99
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1560
Same as above plus superheater percentage1560
Same as above but substitute firebox area for grate area
Power L1
Power MT

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