Longitudinal 0-6-4 Locomotives in Chile

Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 16065)

Data from "ARB" of Chesham, England, Letter entitled "The Longitudinal Railway of Chile", Railway and Locomotive Engineering, Vol (April 1911), pp. 148-149.

ARB described the new Longitudinal Railway as running "practically the length of Chile ...from Arica in the north and Otorno in the south." Noting that the southern section had posed "considerable engineering difficulties", ARB said that at the time of the letter, work had begun on 719 km (447 mi) of Northern section. This mostly desert topography allowed a route that ran over the nitrate deposits at Taltal, Aguas Blancas, Antofagasta, and Tocopilla. There were no tunnels and only one bridge and the permanent way featured relatively heavy 80 lb/yard (40 kg/metre) rail.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID16065
Number in Class2
Road Numbers
Number Built2
BuilderHunslet Engine Co
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)7 / 2.13
Engine Wheelbase (ft / m)17.75 / 5.41
Ratio of driving wheelbase to overall engine wheelbase 0.39
Overall Wheelbase (engine & tender) (ft / m)17.75 / 5.41
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)60,480 / 27,433
Engine Weight (lbs / kg)78,736 / 35,714
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)78,736 / 35,714
Tender Water Capacity (gals / ML)1115 / 4.22
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)34 / 17
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)34 / 864
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)15" x 18" / 381x457
Tractive Effort (lbs / kg)16,200 / 7348.21
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.73
Heating Ability
Tubes (number - dia) (in / mm)117 - 1.875" / 48
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)11 / 3.35
Firebox Area (sq ft / m2)57 / 5.30
Grate Area (sq ft / m2)12.50 / 1.16
Evaporative Heating Surface (sq ft / m2)688 / 63.92
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)688 / 63.92
Evaporative Heating Surface/Cylinder Volume186.88
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2000
Same as above plus superheater percentage2000
Same as above but substitute firebox area for grate area9120
Power L12396
Power MT262.02

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