Ilo-Moquegua 2-8-2 Locomotives in Peru


Class Details by Steve Llanso of Sweat House Media

Class Presidente Leguia (Locobase 15438)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 79, p. 191. See also "Ilo-Moquega" Works numbers were 59809 in February 1927.

This was one of the later acquisitions by this small railway. Not big or superheated, this Mikado was the largest on the line and suitable for the task at hand.

The railroad closed in 1964.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassPresidente Leguia
Locobase ID15438
RailroadIlo-Moquegua
CountryPeru
Whyte2-8-2
Number in Class1
Road Numbers5
GaugeStd
Number Built1
BuilderBaldwin
Year1927
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)12.50 / 3.81
Engine Wheelbase (ft / m)27.58 / 8.41
Ratio of driving wheelbase to overall engine wheelbase 0.45
Overall Wheelbase (engine & tender) (ft / m)54.67 / 16.66
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)109,000 / 49,442
Engine Weight (lbs / kg)144,000 / 65,317
Tender Loaded Weight (lbs / kg)133,000 / 60,328
Total Engine and Tender Weight (lbs / kg)277,000 / 125,645
Tender Water Capacity (gals / ML)7400 / 28.03
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)1600 / 6056
Minimum weight of rail (calculated) (lb/yd / kg/m)45 / 22.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)44 / 1118
Boiler Pressure (psi / kPa)175 / 12.10
High Pressure Cylinders (dia x stroke) (in / mm)18" x 24" / 457x610
Tractive Effort (lbs / kg)26,288 / 11924.05
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.15
Heating Ability
Tubes (number - dia) (in / mm)291 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)12.08 / 3.68
Firebox Area (sq ft / m2)141 / 13.10
Grate Area (sq ft / m2)25.50 / 2.37
Evaporative Heating Surface (sq ft / m2)1971 / 183.18
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1971 / 183.18
Evaporative Heating Surface/Cylinder Volume278.84
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4463
Same as above plus superheater percentage4463
Same as above but substitute firebox area for grate area24,675
Power L14858
Power MT393.03

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