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


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 ID11114
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 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 Drivers70000 lbs
Engine Weight104000 lbs
Tender Light Weight
Total Engine and Tender Weight
Tender Water Capacity3600 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)58 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter70"
Boiler Pressure160 psi
Cylinders (dia x stroke)18" x 24"
Tractive Effort15108 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.63
Heating Ability
Firebox Area148.80 sq. ft
Grate Area18.20 sq. ft
Evaporative Heating Surface1709 sq. ft
Superheating Surface
Combined Heating Surface1709 sq. ft
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 area23808
Power L16478
Power MT408.04


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