Cia Minas Recreio 2-4-0 Locomotives in Brazil


Class Details by Steve Llanso of Sweat House Media

Class 101 (Locobase 15444)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 79, p. 265. Works number was 61161 in December 1929.

This perky six-wheeler (how else can one describe it?) was about as light-footed as a metre-gauge locomotive might ever get. For all its apparent delicacy, however, the 101 faced some challenges. The length of run on this mining railway based at Porto Alegre was 40 km (25 miles) with the line practically level. Rail weight came in at 20 kg/metre (40 lb/yard), but the track was "poorly supported" and the bridges "very weak". Maximum distance between water plugs was 18 km (11.2 miles).

The 101 would later be sold to the Carbonifera Riograndense and in 1947, apparently exported to the Dominican Republic to run on the Central Barahona as their 5.

Principal Dimensions by Steve Llanso of Middle Run Media
Class101
Locobase ID15444
RailroadCia Minas Recreio
CountryBrazil
Whyte2-4-0
Number in Class1
Road Numbers101
GaugeMetre
Number Built1
BuilderBaldwin
Year1929
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 6.25 / 1.90
Engine Wheelbase (ft / m)12.33 / 3.76
Ratio of driving wheelbase to overall engine wheelbase 0.51
Overall Wheelbase (engine & tender) (ft / m)34.62 / 10.55
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)30,500 / 13,835
Engine Weight (lbs / kg)37,000 / 16,783
Tender Loaded Weight (lbs / kg)22,000 / 9979
Total Engine and Tender Weight (lbs / kg)59,000 / 26,762
Tender Water Capacity (gals / ML)1000 / 3.79
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 1.50 / 1
Minimum weight of rail (calculated) (lb/yd / kg/m)25 / 12.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)37 / 940
Boiler Pressure (psi / kPa)175 / 1210
High Pressure Cylinders (dia x stroke) (in / mm)10" x 16" / 254x406
Tractive Effort (lbs / kg)6432 / 2917.51
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.74
Heating Ability
Tubes (number - dia) (in / mm)106 - 1.5" / 38
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 6.46 / 1.97
Firebox Area (sq ft / m2)42 / 3.90
Grate Area (sq ft / m2) 9.10 / 0.85
Evaporative Heating Surface (sq ft / m2)307 / 28.52
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)307 / 28.52
Evaporative Heating Surface/Cylinder Volume211.08
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1593
Same as above plus superheater percentage1593
Same as above but substitute firebox area for grate area7350
Power L13836
Power MT554.55

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