Quebec, Montreal, Ottawa & Occidental 0-4-4 Locomotives in Canada

Class Details by Steve Llanso of Sweat House Media

Class C A Scott (Locobase 11755)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 9, p. 132. Baldwin works number was 4703 in July 1879.

The QMO & O began service in 1877 as it connected Quebec City, Montreal, and the western Quebec town of Hull. It never made money and was sold on 17 May 1882 to the Canadian Pacific. This little Forney suburban locomotive was renumbered four times by the CPR and was finally relegated to yard service until it was scrapped in 1910.

The CPR paid handsomely - $Can7.6 million plus $250,000 for construction of the Quesbec Bridge. Still, according to a 1914 survey of provincial expenditures on railways (in [Sir Arthur George] Doughty and [Adam] Shortt Canada and its Provinces (Vol 17-18), 1914 ). Doughty and Shortt found that for the period 1874 to 1913, Quebec put about half of its Can$26.8 million into building the QMO&O or $Can14 million. Moreover, when the CPR acquired the line, it formed "...practically the main line of that company's road from Quebec to Montreal and from Montreal to Ottawa on the Quebec side of the Ottawa River." (pp. 240-241).

Principal Dimensions by Steve Llanso of Sweat House Media

ClassC A Scott
Locobase ID11755
RailroadQuebec, Montreal, Ottawa & Occidental
Number in Class1
Road Numbers28/252/304/115/Shop 1997
Number Built1
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)7 / 2.13
Engine Wheelbase (ft / m)18.79 / 5.73
Ratio of driving wheelbase to overall engine wheelbase 0.37
Overall Wheelbase (engine & tender) (ft / m)18.79 / 5.73
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)700 / 2.65
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)50 / 1270
Boiler Pressure (psi / kPa)130 / 9
High Pressure Cylinders (dia x stroke) (in / mm)15" x 22" / 381x559
Tractive Effort (lbs / kg)10,940 / 4962.31
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)87 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10.73 / 3.27
Firebox Area (sq ft / m2)48.50 / 4.51
Grate Area (sq ft / m2) 9.50 / 0.88
Evaporative Heating Surface (sq ft / m2)529 / 49.16
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)529 / 49.16
Evaporative Heating Surface/Cylinder Volume117.56
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1235
Same as above plus superheater percentage1235
Same as above but substitute firebox area for grate area6305
Power L11857
Power MT

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