Canadian Pacific 2-10-2 Locomotives in Canada


Class Details by Steve Llanso of Sweat House Media

Class S2 (Locobase 4532)

Data from 1947 Canadian Pacific Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. See also [] on these Santa Fes. (Thanks to Chris Hohl for his 2 April 2013 email pointing me to this article and for noting the tender variations.)

These Santa Fes were built by the railroad, as were many other designs. Most of their service was spent pushing from the rear or helping from the front. As a result their tenders were either the 8,000 gallon/14 ton version shown in the specs or a smaller one holding 6,000 Imperial gallons (22,710 litres) of water and 12 tons of coal.

Although only this one version of the 2-10-2 wheel arrangement served on the CP, the class lasted until 1952-1954.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassS2
Locobase ID4532
RailroadCanadian Pacific (CPR)
CountryCanada
Whyte2-10-2
Number in Class15
Road Numbers5800-5814
GaugeStd
Number Built15
BuilderCanadian Pacific
Year1919
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)21 / 6.40
Engine Wheelbase (ft / m)40.25 / 12.27
Ratio of driving wheelbase to overall engine wheelbase 0.52
Overall Wheelbase (engine & tender) (ft / m)72.83 / 22.20
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)285,000 / 129,274
Engine Weight (lbs / kg)362,000 / 164,201
Tender Loaded Weight (lbs / kg)184,000 / 83,461
Total Engine and Tender Weight (lbs / kg)546,000 / 247,662
Tender Water Capacity (gals / ML)9600 / 36.36
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)14 / 13
Minimum weight of rail (calculated) (lb/yd / kg/m)95 / 47.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)58 / 1473
Boiler Pressure (psi / kPa)200 / 13.80
High Pressure Cylinders (dia x stroke) (in / mm)26.5" x 32" / 673x813
Tractive Effort (lbs / kg)65,866 / 29876.35
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.33
Heating Ability
Tubes (number - dia) (in / mm)219 - 2.25" / 57
Flues (number - dia) (in / mm)43 - 5.5" / 140
Flue/Tube length (ft / m)20.40 / 6.22
Firebox Area (sq ft / m2)360 / 33.44
Grate Area (sq ft / m2)74 / 6.87
Evaporative Heating Surface (sq ft / m2)4256 / 395.39
Superheating Surface (sq ft / m2)1015 / 94.30
Combined Heating Surface (sq ft / m2)5271 / 489.69
Evaporative Heating Surface/Cylinder Volume208.32
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation14,800
Same as above plus superheater percentage17,612
Same as above but substitute firebox area for grate area85,680
Power L114,376
Power MT556.03

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