Peruvian Corp., Southern Railway 2-8-0 Locomotives in Peru


Class Details by Steve Llanso of Sweat House Media

Class 60 (Locobase 12939)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 28, p. 263. 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) pp. 329-330. Works numbers were 27605-27606 in February 1906.

Cross-compounds didn't figure very largely in Baldwin's order books, but as Samuel Vauclain once conceded, a commercial locomotive builder had to be ready to build anything for anyone.

The very specific requirements in the specs called for the locomotive to pull five cars, each loaded with 20 metric tons (24 short tons), but 15 metric tons each up a 3% grade at 12 mph. Its remit was "To run between Molindo["Mullen" in the original, "Mollendo" in Halsey's account] and Arequipa, a distance of 107 miles. Hgth [sic] above sea level 7500 ft. There is about 60 miles of floating or running without steam from Arequipa to Molindo [i.e., mostly downhill]. Longest single stretch of floating is 21 miles. For the above reason object to piston valves."

The line, designed and partially constructed by Henry Meiggs and completed by Henry Thorndyke, continued on 60-80 lb/yard (30-40 kg/m) rail up to Puno. This town--326 miles (525 km) from Mollendo, was the port for Lake Titicaca at an elevation of 12,585 feet (3,836 m). Thirty miles (48 km) further on at Juliaca, the Cuzco division headed north for 210 miles (338 km) and reached its highest point at 14,153 feet (4,314 m).


Class 80 (Locobase 4576)

Data from 1946 Beyer, Peacock catalogue hosted on Martyn Bane's website at [] (accessed 21 May 2006).

Batch #1534 (works# 6833) (Production data from The Beyer, Peacock production list -- [], last accessed 29 May 2006).

Locobase suspects that this locomotive and two others delivered in 1938 (6876) and 1939 (6876) were built to the same design. Like many Beyer, Peacock locomotives, this engine had a Belpaire firebox.

Principal Dimensions by Steve Llanso of Middle Run Media

Class6080
Locobase ID12939 4576
RailroadPeruvian Corp., Southern Railway (FCS)Peruvian Corp., Southern Railway (FCS)
CountryPeruPeru
Whyte2-8-02-8-0
Number in Class21
Road Numbers60-6180
GaugeStdStd
Number Built21
BuilderBurnham, Williams & CoBeyer, Peacock
Year19061937
Valve GearWalschaertWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)14.33 / 4.3715.25 / 4.65
Engine Wheelbase (ft / m)21.83 / 6.6523.92 / 7.29
Ratio of driving wheelbase to overall engine wheelbase 0.66 0.64
Overall Wheelbase (engine & tender) (ft / m)49.19 / 14.99
Axle Loading (Maximum Weight per Axle) (lbs / kg)37,632 / 17,070
Weight on Drivers (lbs / kg)115,000 / 52,163150,080 / 68,075
Engine Weight (lbs / kg)130,000 / 58,967170,240 / 77,220
Tender Loaded Weight (lbs / kg)65,000 / 29,48483,440 / 37,848
Total Engine and Tender Weight (lbs / kg)195,000 / 88,451253,680 / 115,068
Tender Water Capacity (gals / ML)2800 / 10.613180 / 12.05
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)1758 / 6654
Minimum weight of rail (calculated) (lb/yd / kg/m)48 / 2463 / 31.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)52 / 132156 / 1422
Boiler Pressure (psi / kPa)180 / 12.40200 / 13.80
High Pressure Cylinders (dia x stroke) (in / mm)21" x 26" / 533x660 (1)20.5" x 28" / 521x711
Low Pressure Cylinders (dia x stroke) (in / mm)31" x 26" / 787x660 (1)
Tractive Effort (lbs / kg)23,125 / 10489.3435,721 / 16202.79
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.97 4.20
Heating Ability
Tubes (number - dia) (in / mm)217 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)13.33 / 4.06
Firebox Area (sq ft / m2)130 / 12.08162 / 15.06
Grate Area (sq ft / m2)25 / 2.3225 / 2.32
Evaporative Heating Surface (sq ft / m2)1635 / 151.901717 / 159.57
Superheating Surface (sq ft / m2)341 / 31.69
Combined Heating Surface (sq ft / m2)1635 / 151.902058 / 191.26
Evaporative Heating Surface/Cylinder Volume313.73160.52
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation45005000
Same as above plus superheater percentage45005850
Same as above but substitute firebox area for grate area23,40037,908
Power L131399766
Power MT240.71573.84

All material Copyright © SteamLocomotive.com
Wes Barris