International Railway of Central America 2-8-2 Locomotives in El_Salvador


Class Details by Steve Llanso of Sweat House Media

Class 140 (Locobase 15423)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 79, pp. 70+. Works numbers were 60586-60589 in August 1928.

These were small Mikados, even smaller than the numerous saturated-boiler Consolidations shown in Locobase 15258. They shared a lot of dimensions with those 2-8-0s, but had superheated boilers and 8" (203 mm) piston valves. At the same time, the IRCA bought somewhat larger 2-8-2s, which appear in Locobase 15424.

Principal Dimensions by Steve Llanso of Sweat House Media

Class140
Locobase ID15423
RailroadInternational Railway of Central America
CountryEl Salvador
Whyte2-8-2
Number in Class4
Road Numbers140-143 / 126-129
Gauge3'
Number Built4
BuilderBaldwin
Year1928
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)11 / 3.35
Engine Wheelbase (ft / m)25 / 7.62
Ratio of driving wheelbase to overall engine wheelbase 0.44
Overall Wheelbase (engine & tender) (ft / m)47.62 / 14.51
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)81,000 / 36,741
Engine Weight (lbs / kg)101,000 / 45,813
Tender Loaded Weight (lbs / kg)70,000 / 31,752
Total Engine and Tender Weight (lbs / kg)171,000 / 77,565
Tender Water Capacity (gals / ML)3000 / 11.36
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)1500 / 5678
Minimum weight of rail (calculated) (lb/yd / kg/m)34 / 17
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)40 / 1016
Boiler Pressure (psi / kPa)185 / 12.80
High Pressure Cylinders (dia x stroke) (in / mm)16" x 20" / 406x508
Tractive Effort (lbs / kg)20,128 / 9129.92
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.02
Heating Ability
Tubes (number - dia) (in / mm)90 - 2" / 51
Flues (number - dia) (in / mm)15 - 5.375" / 137
Flue/Tube length (ft / m)14.17 / 4.32
Firebox Area (sq ft / m2)81 / 7.53
Grate Area (sq ft / m2)18.70 / 1.74
Evaporative Heating Surface (sq ft / m2)1042 / 96.84
Superheating Surface (sq ft / m2)235 / 21.84
Combined Heating Surface (sq ft / m2)1277 / 118.68
Evaporative Heating Surface/Cylinder Volume223.88
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3460
Same as above plus superheater percentage4082
Same as above but substitute firebox area for grate area17,682
Power L19439
Power MT1027.63

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