Anglo-Chilean Nitrate 2-6-2 Locomotives in Chile


Class Details by Steve Llanso of Sweat House Media

Class 13 (Locobase 21000)

Data from "Anglo-Chilian [sic] Nitrate & Railway Type 2-6-2", Locomotives Constructed by Kitson & Co. Limited (Leeds, UK: n.d); and Robert Stirling, "The Tocapilla Railway" (Paper 3198), Minutes of Proceedings of the Institution of Civil Engineers, Volume 142 (3 April 1900) pp. 89-102 in Table II, p. 93. See also Martin Coombs,Chilean steam locomotive list, Part 2, Standard, 4' 6", 4' 2" and 3' 6" locos, 2018, p. 95 downloaded from [], last accessed 8 April 2022. Works numbers were 3535-3536 in 1894; 3601 and 3613 in 1895; 4340 in 1905; 4839-4840, 4857-4859 in 1911.

Locobase treats all ten (more on that in a moment) of these engines as a single Kitson design for the ACN&RC. He bases his tentative compilation on (Road #14 was ordered twice, the second being a replacement for the first, which was lost at sea.). A guiding requirement for the Prairie tanks seems to have been a maximum 8 3/4 long ton axle loading.

Principal Dimensions by Steve Llanso of Sweat House Media

Class13
Locobase ID21000
RailroadAnglo-Chilean Nitrate (Tocopilla al Toco Ry)
CountryChile
Whyte2-6-2T
Number in Class9
Road Numbers13-15, 22, 31-35
Gauge3'6"
Number Built9
BuilderKitson & Co
Year1895
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m) 6.21 / 1.89
Engine Wheelbase (ft / m)18 / 5.49
Ratio of driving wheelbase to overall engine wheelbase 0.34
Overall Wheelbase (engine & tender) (ft / m)18 / 5.49
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)58,800 / 26,671
Engine Weight (lbs / kg)82,880 / 37,594
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)82,880 / 37,594
Tender Water Capacity (gals / ML)1100 / 4.17
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)33 / 16.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)34.75 / 883
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)14" x 18" / 356x457
Tractive Effort (lbs / kg)13,807 / 6262.76
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.26
Heating Ability
Tubes (number - dia) (in / mm)128 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 9.98 / 3.04
Firebox Area (sq ft / m2)62 / 5.76
Grate Area (sq ft / m2)11.20 / 1.04
Evaporative Heating Surface (sq ft / m2)636 / 59.09
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)636 / 59.09
Evaporative Heating Surface/Cylinder Volume198.31
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1792
Same as above plus superheater percentage1792
Same as above but substitute firebox area for grate area9920
Power L12733
Power MT307.41

All material Copyright © SteamLocomotive.com
Wes Barris