Madeira-Mamore 2-8-0 Locomotives in Brazil


Class Details by Steve Llanso of Sweat House Media

Class 4 (Locobase 13276)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 33, p 79. See Locobase 13275 for a history of the railroad. Works numbers were 33610 in July 1909 and 33611 in August.

Baldwin supplied a large clutch of Moguls to this "Devil's Railway", as described in Locobase 13275. In the midst of the continuing production of the basic 2-6-0, the MM bought this pair of Consolidations. Before their delivery, MM's Lawford H Fry wrote to request that Baldwin put in a raised fire door as they had suggested earlier. He reminded the builder that they had recommended the modification as a way to allow either coal or wood burning.

Fry continued: "For the first few years the Company are concentrating all available labor on the construction of the road and are purchasing coal in preference to using labor to cut wood locally. When however, the construction work is over they propose to make use of the wood, which can be obtained in abundance along the line for fuel."

Principal Dimensions by Steve Llanso of Middle Run Media
Class4
Locobase ID13276
RailroadMadeira-Mamore
CountryBrazil
Whyte2-8-0
Number in Class2
Road Numbers4-5
GaugeMetre
Number Built2
BuilderBurnham, Williams & Co
Year1909
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)11.67 / 3.56
Engine Wheelbase (ft / m)18.33 / 5.59
Ratio of driving wheelbase to overall engine wheelbase 0.64
Overall Wheelbase (engine & tender) (ft / m)44.40 / 13.53
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)92,000 / 41,731
Engine Weight (lbs / kg)100,000 / 45,359
Tender Loaded Weight (lbs / kg)60,000 / 34,019
Total Engine and Tender Weight (lbs / kg)160,000 / 79,378
Tender Water Capacity (gals / ML)3000 / 15.15
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)5
Minimum weight of rail (calculated) (lb/yd / kg/m)38 / 19
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)42 / 1067
Boiler Pressure (psi / kPa)180 / 1240
High Pressure Cylinders (dia x stroke) (in / mm)17" x 20" / 432x508
Tractive Effort (lbs / kg)21,056 / 9550.85
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.37
Heating Ability
Tubes (number - dia) (in / mm)180 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)15.50 / 4.72
Firebox Area (sq ft / m2)72 / 6.69
Grate Area (sq ft / m2)19.70 / 1.83
Evaporative Heating Surface (sq ft / m2)1525 / 141.68
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1525 / 141.68
Evaporative Heating Surface/Cylinder Volume290.25
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3546
Same as above plus superheater percentage3546
Same as above but substitute firebox area for grate area12,960
Power L14520
Power MT433.26

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