Haironville a Triaucourt 0-6-0 Locomotives in France

Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 11175)

Data from A[natole] Mallet, "Compound Locomotives for the Metre-Gauge," reprinted in Minutes of Proceedings of Institution of Civil Engineers, Vol LIX, pp. 349-350. See also Mallet's Etude sur L'Utilisation de la Vapeur dans les Locomotives et L'Application a ces Machines du Fonctionnement Compound (Paris: Librairie Polytechnique Ch. Beranger, Ed, 1878), especially pp. 126-131.

Locobase 7377 shows Mallet's first experiment with a compound tank on the Bayonne & Biarritz. It was followed by this engine, which had two link motions that operated independently of each other using the hand-lever, but in synch when using the reversing screw.

On a railroad that featured curves with radii as tight as 115 ft, "A.B" reported that when working direct (i.e. full boiler steam in both cylinders), the locomotive could move a 60-ton train up a 1 in 33 (3%) grade.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID11175
RailroadHaironville a Triaucourt
Number in Class5
Road Numbers
Number Built5
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m) 5.51 / 1.68
Engine Wheelbase (ft / m) 5.51 / 1.68
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m) 5.51 / 1.68
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)34,172 / 15,500
Engine Weight (lbs / kg)34,172 / 15,500
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)34,172 / 15,500
Tender Water Capacity (gals / ML)502 / 1.90
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)19 / 9.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)29.50 / 750
Boiler Pressure (psi / kPa)140.70 / 9.70
High Pressure Cylinders (dia x stroke) (in / mm)8.66" x 15.75" / 220x400 (1)
Low Pressure Cylinders (dia x stroke) (in / mm)13.58" x 15.75" / 345x400 (1)
Tractive Effort (lbs / kg)3404 / 1544.03
Factor of Adhesion (Weight on Drivers/Tractive Effort)10.04
Heating Ability
Tubes (number - dia) (in / mm)99 - 1.772" / 45
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 7.22 / 2.20
Firebox Area (sq ft / m2)34.43 / 3.20
Grate Area (sq ft / m2) 6.99 / 0.65
Evaporative Heating Surface (sq ft / m2)351 / 32.60
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)351 / 32.60
Evaporative Heating Surface/Cylinder Volume653.80
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation983
Same as above plus superheater percentage983
Same as above but substitute firebox area for grate area4844
Power L12741
Power MT530.51

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