Data from 1947 Canadian Pacific Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange.(Thanks to Chris Hohl for his 15 January 2019 email noting the T3's engine wheelbase.)
Although Locobase doesn't normally include North American switchers, any locomotive with an unusual wheel arrangement merits attention. The CP built this pair to a unique design whose profile revealed three evenly spaced domes of equal size, cylinders topped by relatively large piston valves, side tanks that were cut away over the valve gear (to permit easy maintenance, one supposes), a large cab and big bunker.
CP used these engines as terminal switchers in Montreal and Toronto. One was retired in 1930, the other lasted until 1951.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | T3 |
Locobase ID | 8734 |
Railroad | Canadian Pacific (CPR) |
Country | Canada |
Whyte | 0-6-4T |
Number in Class | 2 |
Road Numbers | 1996-1997/5996-5997 |
Gauge | Std |
Number Built | 2 |
Builder | Canadian Pacific |
Year | 1912 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 11.50 |
Engine Wheelbase (ft / m) | 24.83 |
Ratio of driving wheelbase to overall engine wheelbase | 0.46 |
Overall Wheelbase (engine & tender) (ft / m) | 24.82 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 150,000 / 68,039 |
Engine Weight (lbs / kg) | 200,000 / 90,719 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | 3600 / 13.64 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 5.50 / 5 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 83 / 41.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 52 / 1321 |
Boiler Pressure (psi / kPa) | 200 / 1380 |
High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 26" / 457x660 |
Tractive Effort (lbs / kg) | 27,540 / 12491.95 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.45 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 232 - 2" / 51 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 11.49 / 3.50 |
Firebox Area (sq ft / m2) | 138 / 12.83 |
Grate Area (sq ft / m2) | 28 / 2.60 |
Evaporative Heating Surface (sq ft / m2) | 1544 / 143.49 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 1544 / 143.49 |
Evaporative Heating Surface/Cylinder Volume | 201.57 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 5600 |
Same as above plus superheater percentage | 5600 |
Same as above but substitute firebox area for grate area | 27,600 |
Power L1 | 5055 |
Power MT | 222.89 |