Saint Germain 0-6-0 Locomotives in France

Class Details by Steve Llanso of Sweat House Media

Class Antee (Locobase 11349)

Data from L Chatelier, E Flachat, J Petiet, and C Polonceau, Guide du Mecanicien Constructeur et Conducteur de Machines Locomotives (Paris: Chez Paul Dupont, 1851), pp. 374 and tables on 376-387.

Actually built for the La Pecq-Saint Germain, this locomotive was credited with a tonnage rating of 15-16 voitures (passenger coaches) amounting to 96 tonnes up a grade steep enough to equate to 560 tonnes on the level. The design had its dome placed well forward just behind the stack, wood lagging on the boiler and cylinders,

Principal Dimensions by Steve Llanso of Middle Run Media

Locobase ID11349
RailroadSaint Germain
Number in Class
Road Numbers
Number Built
Valve Gear
Locomotive Length and Weight
Driver Wheelbase (ft / m)10.56 / 3.22
Engine Wheelbase (ft / m)10.56 / 3.22
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)
Engine Weight (lbs / kg)55,116 / 25,000
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)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)47.60 / 1210
Boiler Pressure (psi / kPa)72.50 / 5
High Pressure Cylinders (dia x stroke) (in / mm)17.72" x 27.56" / 450x700
Tractive Effort (lbs / kg)11,204 / 5082.05
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)120 - 2.047" / 52
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)13.52 / 4.12
Firebox Area (sq ft / m2)63.48 / 5.90
Grate Area (sq ft / m2)10.76 / 1
Evaporative Heating Surface (sq ft / m2)858 / 79.70
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)858 / 79.70
Evaporative Heating Surface/Cylinder Volume109.07
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation780
Same as above plus superheater percentage780
Same as above but substitute firebox area for grate area4602
Power L1859
Power MT

All material Copyright ©
Wes Barris