Arica La Paz/FCB 2-8-2 Locomotives in Bolivia

Class Details by Steve Llanso of Sweat House Media

Class 201 (Locobase 21081)

Data from FC CC de Bolivia 1958 Locomotive Diagrams, supplied in August 2022 by Allen Stanley from his extensive Railroad Data Exchange collection; and Martin Coombs, Bolivian steam locomotive list (October 2020), downloaded from []), p. 32. Works numbers were 2442-2444, 2451 in 1958.

Although Japanese locomotve builders were already switching to diesel power, they still produced up-to-date steam locomotives for export. The dozen metre-gauge engines sold to four Bolivian railways were typical of Hitachi's locomotive output, which formed a small part of the company's overall business as Japan recovered from war losses and damage.

Most notable features were the large firebox (with 1.4 sq m/15.07 sq ft in arch tubes), high superheater percentage of combined heating surface area and very low factor of adhesion.

When Bolivia gathered all the private railways under the banner of Empresa Nacional de los Ferrocarriles del Estado (ENFE) in 1965, this quartet acquired the 600-series numbers.

(Note: While Mikados lingered as the name for 2-8-2s, its historic links stem from very different circumstances. And clearly "MacArthurs" would not do.)

Principal Dimensions by Steve Llanso of Middle Run Media

Locobase ID21081
RailroadArica La Paz/FCB
Number in Class4
Road Numbers201-203, 210/661-664
Number Built4
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)13.78 / 4.20
Engine Wheelbase (ft / m)30.18 / 9.20
Ratio of driving wheelbase to overall engine wheelbase 0.46
Overall Wheelbase (engine & tender) (ft / m)58.63 / 17.87
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)132,277 / 60,000
Engine Weight (lbs / kg)177,913 / 80,700
Tender Loaded Weight (lbs / kg)110,672 / 50,200
Total Engine and Tender Weight (lbs / kg)288,585 / 130,900
Tender Water Capacity (gals / ML)6336 / 24
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)2378 / 9000
Minimum weight of rail (calculated) (lb/yd / kg/m)55 / 27.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)47.20 / 1200
Boiler Pressure (psi / kPa)198.70 / 13.70
High Pressure Cylinders (dia x stroke) (in / mm)22.05" x 24.02" / 560x610
Tractive Effort (lbs / kg)41,789 / 18955.19
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.17
Heating Ability
Tubes (number - dia) (in / mm)202 - 1.89" / 48
Flues (number - dia) (in / mm)30 - 5.236" / 133
Flue/Tube length (ft / m)14.99 / 4.57
Firebox Area (sq ft / m2)191.60 / 17.80
Grate Area (sq ft / m2)34.77 / 3.23
Evaporative Heating Surface (sq ft / m2)1647 / 153
Superheating Surface (sq ft / m2)447 / 41.50
Combined Heating Surface (sq ft / m2)2094 / 194.50
Evaporative Heating Surface/Cylinder Volume155.14
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation6909
Same as above plus superheater percentage8360
Same as above but substitute firebox area for grate area46,066
Power L19759
Power MT650.60

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Wes Barris