Comox Logging & Railway Company 2-6-2 Locomotives in Canada


Class Details by Steve Llanso of Sweat House Media

Class 2 (Locobase 13722)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 36, p. 160. Works number was 34921 in July 1910.

Fraser River Lumber Company, Ltd bought this wood-burning logging Prairie tank for its British Columbia operations. It was required (in the specs, at least) to scale 6% grades and negotiate 35-degree curves.

The 2 was donated for display at Courtenay, BC in August 1960.


Class 3 (Locobase 13714)

Data from DeGolyer Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 36, p. 74. See also the The British Columbia Archival Information Network website account at [];rad, last accessed 13 December 2012. Works number was 35781 in January 1911.

This logging Prairie was bought by the Canadian Western Lumber Company, but it was lettered for the enterprise that bc.memory says became the largest logging company in the British Empire (at a time when the sun never set on the Empire, y' know). Comox logged the forests between Comox and the Campbell River and delivered the timber to the CW sawmills at Fraser Mills.

The 3 operated for Comox during its entire career and was scrapped in Canada in 1944.

Principal Dimensions by Steve Llanso of Sweat House Media

Class23
Locobase ID13722 13714
RailroadComox Logging & Railway CompanyComox Logging & Railway Company
CountryCanadaCanada
Whyte2-6-2T2-6-2
Number in Class11
Road Numbers23
GaugeStdStd
Number Built11
BuilderBaldwinBaldwin
Year19111910
Valve GearWalschaertStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)9 / 2.7411 / 3.35
Engine Wheelbase (ft / m)24 / 7.3226.58 / 8.10
Ratio of driving wheelbase to overall engine wheelbase 0.38 0.41
Overall Wheelbase (engine & tender) (ft / m)24 / 7.3248.50 / 14.78
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)66,000 / 29,937103,000 / 46,720
Engine Weight (lbs / kg)96,000 / 43,545139,000 / 63,049
Tender Loaded Weight (lbs / kg)70,000 / 31,752
Total Engine and Tender Weight (lbs / kg)96,000209,000 / 94,801
Tender Water Capacity (gals / ML)1000 / 3.793500 / 13.26
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)7 / 6
Minimum weight of rail (calculated) (lb/yd / kg/m)37 / 18.5057 / 28.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)44 / 111844 / 1118
Boiler Pressure (psi / kPa)170 / 11.70170 / 11.70
High Pressure Cylinders (dia x stroke) (in / mm)15" x 22" / 381x55918" x 24" / 457x610
Tractive Effort (lbs / kg)16,256 / 7373.6125,537 / 11583.40
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.06 4.03
Heating Ability
Tubes (number - dia) (in / mm)95 - 2" / 51255 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)12.50 / 3.8112.50 / 3.81
Firebox Area (sq ft / m2)71.80 / 6.67145 / 13.47
Grate Area (sq ft / m2)12.80 / 1.1926 / 2.42
Evaporative Heating Surface (sq ft / m2)689 / 64.011802 / 167.41
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)689 / 64.011802 / 167.41
Evaporative Heating Surface/Cylinder Volume153.11254.88
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation21764420
Same as above plus superheater percentage21764420
Same as above but substitute firebox area for grate area12,20624,650
Power L129034456
Power MT290.91286.13

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