St Lawrence & Adirondack 4-6-0 "Ten-wheeler" Locomotives of the USA


Class Details by Steve Llanso of Sweat House Media

Class 5 (Locobase 11118)

Data from Schenectady Locomotive Works, Illustrated Catalogue of Simple and Compound Locomotives (Philadelphia: J B Lippincott, 1897), pp. 36-37. Works numbers were 2772-2774 in 1897.

This Ten-wheeler design had a relatively small grate to serve such a large boiler.

The 5 and the 7 were relettered for the Rutland and renumbered 249 and 250. 6 was renumbered by the New York Central & Hudson River 1002.

Specifications by Steve Llanso of Sweat House Media
Class5
Locobase ID11118
RailroadSt Lawrence & Adirondack
CountryUSA
Whyte4-6-0
Number in Class
Road Numbers5-7
GaugeStd
Number Built
BuilderSchenectady
Year1897
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase12.83'
Engine Wheelbase23.33'
Ratio of driving wheelbase to overall engine wheebase 0.55
Overall Wheelbase (engine & tender)50.17'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers108500 lbs
Engine Weight139800 lbs
Tender Light Weight
Total Engine and Tender Weight
Tender Water Capacity4500 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)60 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter64"
Boiler Pressure180 psi
Cylinders (dia x stroke)20" x 26"
Tractive Effort24863 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.36
Heating Ability
Firebox Area154.24 sq. ft
Grate Area26.96 sq. ft
Evaporative Heating Surface2318 sq. ft
Superheating Surface
Combined Heating Surface2318 sq. ft
Evaporative Heating Surface/Cylinder Volume245.19
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4853
Same as above plus superheater percentage4853
Same as above but substitute firebox area for grate area27763
Power L16274
Power MT382.45


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