St Lawrence & Adirondack 4-4-0 "American" Locomotives of 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.

Specifications 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 Wheelbase9'
Engine Wheelbase23.92'
Ratio of driving wheelbase to overall engine wheebase 0.38
Overall Wheelbase (engine & tender)46.12'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers72000 lbs
Engine Weight109000 lbs
Tender Light Weight
Total Engine and Tender Weight
Tender Water Capacity3850 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)60 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter67"
Boiler Pressure180 psi
Cylinders (dia x stroke)18" x 24"
Tractive Effort17757 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.05
Heating Ability
Firebox Area152 sq. ft
Grate Area17.90 sq. ft
Evaporative Heating Surface1812 sq. ft
Superheating Surface
Combined Heating Surface1812 sq. ft
Evaporative Heating Surface/Cylinder Volume256.35
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 area27360
Power L17314
Power MT447.91

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