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

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Class Details by Steve Llanso of Sweat House Media

Class 11 (Locobase 11114)

Data from Schenectady Locomotive Works, Illustrated Catalogue of Simple and Compound Locomotives (Philadelphia: J B Lippincott, 1897), pp. 32-33. Works numbers were 3511-3512 in May 1891 and 3513-3514 in July 1891.

Not to be confused with the St Lawrence & Adirondack, this railway was built to exploit the vast timber reserves in the Adirondacks. It also provided a direct route to the St Lawrence valley.

Specifications by Steve Llanso of Sweat House Media
Class11
Locobase ID11,114
RailroadAdirondack & St Lawrence
CountryUSA
Whyte4-4-0
Number in Class4
Road Numbers11-14
GaugeStd
Number Built4
BuilderSchenectady
Year1891
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 wheebase 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)70,000 / 31,752
Engine Weight (lbs / kg)104,000 / 47,174
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 / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)58 / 29
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)70 / 1778
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)18" x 24" / 457x610
Tractive Effort (lbs / kg)15,108 / 6852.88
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.63
Heating Ability
Firebox Area (sq ft / m2)148.80 / 13.83
Grate Area (sq ft / m2)18.20 / 1.69
Evaporative Heating Surface (sq ft / m2)1709 / 158.83
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1709 / 158.83
Evaporative Heating Surface/Cylinder Volume241.77
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2912
Same as above plus superheater percentage2912
Same as above but substitute firebox area for grate area23,808
Power L16478
Power MT408.04