Data from Locomotive Cyclopedia entry archived on line by Old Line Trains at [], last accessed 23 Novmber 2017. For a detailed background essay on the S&L in particular and Cape Breton coal and iron exploration in general, see David Frank, "The Cape Breton Coal Industry and the Rise and Fall of the British Empire Steel Company" Acadiensis (1977), pp. 3-34. (Thanks to Steve Low in his November 1917 email supplying a copy of the LC entry.). Works numbers were 66319 in August 1925 and 67622 in July 1928.
The second of these two low-drivered Mikados was ordered first by the British Empire Steel Corporation, a short-lived conglomerate which was taken over in the same year by the S&L's parent Dominion Coal Company, Ltd.
Principal Dimensions by Steve Llanso of Middle Run Media | |
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Class | 70 |
Locobase ID | 16320 |
Railroad | Sydney & Louisburg |
Country | Canada |
Whyte | 2-8-2 |
Number in Class | 2 |
Road Numbers | 70-71 |
Gauge | Std |
Number Built | 2 |
Builder | Montreal LW |
Year | 1925 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 14.25 / 4.34 |
Engine Wheelbase (ft / m) | 32.83 / 10.01 |
Ratio of driving wheelbase to overall engine wheelbase | 0.43 |
Overall Wheelbase (engine & tender) (ft / m) | |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 173,900 / 78,880 |
Engine Weight (lbs / kg) | 232,400 / 105,415 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 72 / 36 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 51 / 1295 |
Boiler Pressure (psi / kPa) | 200 / 1380 |
High Pressure Cylinders (dia x stroke) (in / mm) | 21" x 28" / 533x711 |
Tractive Effort (lbs / kg) | 41,160 / 18669.88 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.22 |
Heating Ability | |
Tubes (number - dia) (in / mm) | |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | |
Firebox Area (sq ft / m2) | |
Grate Area (sq ft / m2) | 54.50 / 5.06 |
Evaporative Heating Surface (sq ft / m2) | 2819 / 261.89 |
Superheating Surface (sq ft / m2) | 685 / 63.64 |
Combined Heating Surface (sq ft / m2) | 3504 / 325.53 |
Evaporative Heating Surface/Cylinder Volume | 251.25 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 10,900 |
Same as above plus superheater percentage | 13,080 |
Same as above but substitute firebox area for grate area | |
Power L1 | |
Power MT |