Canadian Collieries 2-8-2 Locomotives in Canada


Class Details by Steve Llanso of Sweat House Media

Class 20 (Locobase 14170)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 49, p. 27. See also the excellent Dictionary of Canadian Biography Online's James Dunsmuir entry at [link]. Works number was 39115 in January 1913.

British Columbia's Vancouver Island held coal reserves and the Canadian Collieries (Dunsmuir) Ltd operated the Wellington Mines near Nanaimo and Cumberland's Comox mines. The company, which had only been formed by McKenzie and Mann after its purchase of the assets from Dunsmuir in 1910, included all of his mining interests and the railroad that served them.

This little Mikado's first year in operation resulted in a long letter written on 24 October 1913 to Eddystone in which the CC(D) Ltd detailed all of the changes it had felt compelled to make to the engine. Parts such as the eccentric strap and the equalizer pin worked loose, many parts were replaced by case-hardened counterparts, and the main drivers were wearing too rapidly. The company installed a plate between the ash pan and the axle and turned the injector overflow to drip into the pan "to prevent dust blowing onto eccentrics."

Ultimately, the 20 served the CC(D) for 45 years before being scrapped in March 1958.

Principal Dimensions by Steve Llanso of Middle Run Media
Class20
Locobase ID14170
RailroadCanadian Collieries (Dunsmuir) Ltd
CountryCanada
Whyte2-8-2
Number in Class1
Road Numbers20
GaugeStd
Number Built1
BuilderBaldwin
Year1913
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)12.08 / 3.68
Engine Wheelbase (ft / m)27.25 / 8.31
Ratio of driving wheelbase to overall engine wheelbase 0.44
Overall Wheelbase (engine & tender) (ft / m)51.54 / 15.71
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)114,000 / 51,710
Engine Weight (lbs / kg)142,000 / 64,410
Tender Loaded Weight (lbs / kg)90,000 / 40,823
Total Engine and Tender Weight (lbs / kg)232,000 / 105,233
Tender Water Capacity (gals / ML)4500 / 17.05
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)7 / 6
Minimum weight of rail (calculated) (lb/yd / kg/m)48 / 24
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)44 / 1118
Boiler Pressure (psi / kPa)180 / 1240
High Pressure Cylinders (dia x stroke) (in / mm)18" x 24" / 457x610
Tractive Effort (lbs / kg)27,039 / 12264.70
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.22
Heating Ability
Tubes (number - dia) (in / mm)291 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)13 / 3.96
Firebox Area (sq ft / m2)140 / 13.01
Grate Area (sq ft / m2)25.50 / 2.37
Evaporative Heating Surface (sq ft / m2)2108 / 195.84
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)2108 / 195.84
Evaporative Heating Surface/Cylinder Volume298.16
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4590
Same as above plus superheater percentage4590
Same as above but substitute firebox area for grate area25,200
Power L15243
Power MT405.57

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