Toledo, Peoria & Western 4-6-0 "Ten-wheeler" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class G-4-A (Locobase 11509)

Data from Baldwin Locomotive Works Specification for Engines, 1903, as digitized by the DeGolyer Library of Southern Methodist University Vol 26, p. 223. Works numbers were 23587, 23598, 23613, 23622, 23636 in January 1904; 26637, 26650-26652, 26688 in October 1905.

Very like the RF & P locomotives shown in of the same year and builder (Locobase 7117), this class represented the lighter end of Ten-wheeler designs being procured in that period. Never superheated, these engines ran about 25 years before being scrapped in 1926-1929.

Specifications by Steve Llanso of Sweat House Media
Locobase ID11509
RailroadToledo, Peoria & Western
Number in Class5
Road Numbers50-59
Number Built5
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase13.50'
Engine Wheelbase24.33'
Ratio of driving wheelbase to overall engine wheebase 0.55
Overall Wheelbase (engine & tender)
Axle Loading (Maximum Weight per Axle)
Weight on Drivers100000 lbs
Engine Weight135000 lbs
Tender Light Weight85000 lbs
Total Engine and Tender Weight220000 lbs
Tender Water Capacity4500 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)56 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter63"
Boiler Pressure200 psi
Cylinders (dia x stroke)19" x 26"
Tractive Effort25327 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.95
Heating Ability
Firebox Area162 sq. ft
Grate Area28 sq. ft
Evaporative Heating Surface2284 sq. ft
Superheating Surface
Combined Heating Surface2284 sq. ft
Evaporative Heating Surface/Cylinder Volume267.69
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5600
Same as above plus superheater percentage5600
Same as above but substitute firebox area for grate area32400
Power L17615
Power MT503.65

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