St Lawrence & Adirondack 4-4-0 "American" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class Beauharnois (Locobase 11115)

Data from Schenectady Locomotive Works, Illustrated Catalogue of Simple and Compound Locomotives (Philadelphia: J B Lippincott, 1897), pp. 36-37. See also [], last accessed 22 January 2010. Works number was 4437 in February 1896.

Note the small grate compared to the rest of the areas in this locomotive, which operated on the StL&A for less than a year before being sold to the Canada Atlantic as their 24. When the CAR was amalgamated with the Grand Trunk, this engine was placed in its own class H-6 and renumbered three times. Finally, the CNR took over the GTR's motive power, classified the by-now 2240 as B-17 and numbered it 311, and scrapped it in 1925.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID11115
RailroadSt Lawrence & Adirondack
Number in Class1
Road Numbers1
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)9 / 2.74
Engine Wheelbase (ft / m)23.92 / 7.29
Ratio of driving wheelbase to overall engine wheelbase 0.38
Overall Wheelbase (engine & tender) (ft / m)46.12 / 14.06
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)72,000 / 32,659
Engine Weight (lbs / kg)109,000 / 49,442
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)3850 / 14.58
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)60 / 30
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)67 / 1702
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)18" x 24" / 457x610
Tractive Effort (lbs / kg)17,757 / 8054.45
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.05
Heating Ability
Tubes (number - dia) (in / mm)266 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)12 / 3.66
Firebox Area (sq ft / m2)152 / 14.13
Grate Area (sq ft / m2)17.90 / 1.66
Evaporative Heating Surface (sq ft / m2)1812 / 168.40
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1812 / 168.40
Evaporative Heating Surface/Cylinder Volume256.29
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3222
Same as above plus superheater percentage3222
Same as above but substitute firebox area for grate area27,360
Power L17312
Power MT447.78

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