Montpelier a Palavas 0-4-0 Locomotives in France

Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 9159)

Data from A. Sampite, Les Chemins de Fer a Faible Trafic en France (Paris: Baudry et Cie, 1888), p. 49. See also [] for a history of these Freycinet Plan railways and Wikipedia: [] (accessed 2 February 2008).

The Reseau d'Interet Local CF de l'HTrault was a network of secondary lines along the Gulf of Lyon in Southeast France. Sampite provides a summary of all the locomotives then in service on any of the lines and Wikipedia fills in the blanks. Note that none of the series of locomotives (Locobase 9159-9164) had either boiler pressure or grate area. The boiler pressure is an estimate.

This set of Grafenstadens served the Palavas line (Palavas was an up-and-coming beach attraction) until 1917.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID9159
RailroadMontpelier a Palavas
Number in Class4
Road Numbers1-4
Number Built4
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)51,147 / 23,200
Engine Weight (lbs / kg)51,147 / 23,200
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)51,147 / 23,200
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)43 / 21.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)51.20 / 1300
Boiler Pressure (psi / kPa)123.30 / 8.50
High Pressure Cylinders (dia x stroke) (in / mm)11.81" x 18.11" / 300x460
Tractive Effort (lbs / kg)5170 / 2345.08
Factor of Adhesion (Weight on Drivers/Tractive Effort) 9.89
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)41.96 / 3.90
Grate Area (sq ft / m2)
Evaporative Heating Surface (sq ft / m2)521 / 48.40
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)521 / 48.40
Evaporative Heating Surface/Cylinder Volume226.90
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation
Same as above plus superheater percentage
Same as above but substitute firebox area for grate area5174
Power L13349
Power MT288.71

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