Paris-Saint-Germain 2-2-0 Locomotives in France


Class Details by Steve Llanso of Sweat House Media

Class Bury (Locobase 20006)

Data from E Flachat and J Petiet, Guide du Mechanicien-Conducteur de Machine Locomotives ...(Paris: Mathias, Libraire, 1840), passim, basic data in Tables B & C, pp. 218-219.

This quartet was headed by the Bury and included Paris, la Seine, and Aigle. They were of the Planet type


Class Denys Papin (Locobase 4815)

Cited by Reder (1974) as a Planet type and used to show how quickly the basic Stephenson locomotive design spread. The data, he notes, are from French sources which Locobase confirmed with the book by Felix Mathias, Etudes sur Machines Locomotives de Sharp et Roberts Comparees a Celles d'Autres Constructeurs ...(Paris, Librairie Scientifique-Industrielle de L. Mathias, 1844). See also E Flachat and J Petiet, Guide du Mechanicien-Conducteur de Machine Locomotives ...(Paris: Mathias, Libraire, 1840), passim, basic data in Tables B & C, pp. 218-219.

The second locomotive was named Denis-Papin.

Flachat-Petiet's 1840 data show a smaller locomotive. Nor do the Mathias data agree with the numbers recorded for the Planet in G. Drysdale Dempsey A Rudimentary Treatise on the Locomotive Engine (1857; reprint 1970).

Principal Dimensions by Steve Llanso of Sweat House Media

ClassBuryDenys Papin
Locobase ID20006 4815
RailroadParis-Saint-GermainParis-Saint-Germain
CountryFranceFrance
Whyte2-2-02-2-0
Number in Class42
Road Numbers
GaugeStdStd
Number Built42
BuilderBuryJackson
Year18361835
Valve Gear
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m) 4.99 / 1.52
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)11,023 / 500015,267 / 6925
Engine Weight (lbs / kg)19,842 / 900021,385 / 9700
Tender Loaded Weight (lbs / kg)11,023 / 500010,472 / 4750
Total Engine and Tender Weight (lbs / kg)30,865 / 14,00031,857 / 14,450
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)18 / 925 / 12.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)60.90 / 154660.60 / 1539
Boiler Pressure (psi / kPa)49.30 / 3.4049.30 / 3.40
High Pressure Cylinders (dia x stroke) (in / mm)11.02" x 16.34" / 280x41511.02" x 15.98" / 280x406
Tractive Effort (lbs / kg)1365 / 619.151342 / 608.72
Factor of Adhesion (Weight on Drivers/Tractive Effort) 8.0811.38
Heating Ability
Tubes (number - dia) (in / mm)76 - 2.047" / 5282 - 1.929" / 49
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 7.74 / 2.36 6.56 / 2
Firebox Area (sq ft / m2)33.05 / 3.0743.06 / 4
Grate Area (sq ft / m2) 7.10 / 0.66 6.67 / 0.62
Evaporative Heating Surface (sq ft / m2)356 / 33.07286 / 26.60
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)356 / 33.07286 / 26.60
Evaporative Heating Surface/Cylinder Volume197.36162.12
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation350329
Same as above plus superheater percentage350329
Same as above but substitute firebox area for grate area16292123
Power L114461415
Power MT289.20204.33

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