Williamsport & North Branch 2-8-0 "Consolidation" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 4 (Locobase 11740)

Data from Baldwin Locomotive Works Specification for Engines, 1890, as digitized by the DeGolyer Library of Southern Methodist University Vol 18, p. 108. Works numbers were 13049 in November 1892, 13481 in June 1893, and 13855 in December.

These Wootten-boilered drag freighters served a northern Pennsylvania short-line that remained independent from its incorporation in 1872 to its closing in 1937.

Specifications by Steve Llanso of Sweat House Media
Locobase ID11740
RailroadWilliamsport & North Branch
Number in Class3
Road Numbers4-5, 7
Number Built3
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase13.67'
Engine Wheelbase21.75'
Ratio of driving wheelbase to overall engine wheebase 0.63
Overall Wheelbase (engine & tender)
Axle Loading (Maximum Weight per Axle)
Weight on Drivers110000 lbs
Engine Weight125000 lbs
Tender Light Weight
Total Engine and Tender Weight
Tender Water Capacity3500 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)46 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter50"
Boiler Pressure160 psi
Cylinders (dia x stroke)20" x 24"
Tractive Effort26112 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.21
Heating Ability
Firebox Area155 sq. ft
Grate Area63.30 sq. ft
Evaporative Heating Surface1928 sq. ft
Superheating Surface
Combined Heating Surface1928 sq. ft
Evaporative Heating Surface/Cylinder Volume220.93
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation10128
Same as above plus superheater percentage10128
Same as above but substitute firebox area for grate area24800
Power L14130
Power MT331.09

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