Ilo a Moquegua 2-6-0 Locomotives in Peru


Class Details by Steve Llanso of Sweat House Media

Class Pardo (Locobase 20195)

Data from Catalogue No. 10036--Locomotives for Export (New York City: American Locomotive Company (April 1910). See also Frederic M Halsey, Investments in Latin America and the British West Indies, Special Agents Series - No 169, United States Department of Commerce (Washington, DC: Government Printing Office,1918) p. 332. Works number was 44954 in February 1908.

The 1918 consular report said that this railway connected Peru's southernmost port of Ilo with Moquegua, which was 62 miles (100 km) away in the province of the same name. The IaM opened in 1873 after a three-year construction period, but was shut down by the Great Pacific War of 1879-1883 and only reopened in 1907.

The modestly scaled Mogul was the first new locomotive on the line, which had a total of three (the other two built by Baldwin; see Locobases 13472-13473.

Principal Dimensions by Steve Llanso of Middle Run Media
ClassPardo
Locobase ID20195
RailroadIlo a Moquegua
CountryPeru
Whyte2-6-0
Number in Class1
Road Numbers1
GaugeStd
Number Built1
BuilderAlco-Rogers
Year1908
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)13 / 3.96
Engine Wheelbase (ft / m)20.50 / 6.25
Ratio of driving wheelbase to overall engine wheelbase 0.63
Overall Wheelbase (engine & tender) (ft / m)43.48 / 13.25
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)85,900 / 38,964
Engine Weight (lbs / kg)100,800 / 45,722
Tender Loaded Weight (lbs / kg)71,400 / 32,387
Total Engine and Tender Weight (lbs / kg)172,200 / 78,109
Tender Water Capacity (gals / ML)3000 / 9.47
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)6
Minimum weight of rail (calculated) (lb/yd / kg/m)48 / 24
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)54 / 1372
Boiler Pressure (psi / kPa)180 / 1240
High Pressure Cylinders (dia x stroke) (in / mm)16" x 24" / 406x610
Tractive Effort (lbs / kg)17,408 / 7896.15
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.93
Heating Ability
Tubes (number - dia) (in / mm)190 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)11 / 3.35
Firebox Area (sq ft / m2)112 / 10.41
Grate Area (sq ft / m2)18.60 / 1.73
Evaporative Heating Surface (sq ft / m2)1198 / 111.30
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1198 / 111.30
Evaporative Heating Surface/Cylinder Volume214.50
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3348
Same as above plus superheater percentage3348
Same as above but substitute firebox area for grate area20,160
Power L15099
Power MT392.60

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