El Cobre Mines 0-6-2 Locomotives in Cuba

Class Details by Steve Llanso of Sweat House Media

Class Jose Marti (Locobase 12805)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 28, p. 52. Works number was 25709 in May 1905.

Twenty-one years after El Cobre ordered a radial tank from Baldwin, the Cuban copper-mining company returned for an identical locomotive. The only difference was an increase in boiler pressure.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassJose Marti
Locobase ID12805
RailroadEl Cobre Mines
Number in Class1
Road Numbers5
Number Built1
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 8.08 / 2.46
Engine Wheelbase (ft / m)14.33 / 4.37
Ratio of driving wheelbase to overall engine wheelbase 0.56
Overall Wheelbase (engine & tender) (ft / m)14.33 / 4.37
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)500 / 1.89
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)37 / 940
Boiler Pressure (psi / kPa)150 / 10.30
High Pressure Cylinders (dia x stroke) (in / mm)12" x 18" / 305x457
Tractive Effort (lbs / kg)8932 / 4051.49
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)62 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)11.29 / 3.44
Firebox Area (sq ft / m2)35.60 / 3.31
Grate Area (sq ft / m2) 7.17 / 0.67
Evaporative Heating Surface (sq ft / m2)400 / 37.17
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)400 / 37.17
Evaporative Heating Surface/Cylinder Volume169.77
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1076
Same as above plus superheater percentage1076
Same as above but substitute firebox area for grate area5340
Power L12269
Power MT

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