East Broad Top R & C 4-6-0 "Ten-wheeler" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class Cromwell (Locobase 11432)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 24, p. 127 and Volume 30, p. . Works numbers were 19849 in December 1901 and 29172 in December 1906.

Cromwell, soon given number 4, remained on the EBT all of its days, operating for more then 30 years before being retired in December 1934. #10 was newer but had only a short career on the EBT. In 1913, the Ohio River & Western bought the engine and ran it until the road closed in 1931; at that point, it was scrapped.

Specifications by Steve Llanso of Sweat House Media
Locobase ID11432
RailroadEast Broad Top R & C
Number in Class2
Road Numbers4, 10
Number Built2
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase12.50'
Engine Wheelbase21.83'
Ratio of driving wheelbase to overall engine wheebase 0.57
Overall Wheelbase (engine & tender)
Axle Loading (Maximum Weight per Axle)
Weight on Drivers60000 lbs
Engine Weight80000 lbs
Tender Light Weight
Total Engine and Tender Weight
Tender Water Capacity2500 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)33 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter48"
Boiler Pressure160 psi
Cylinders (dia x stroke)16" x 20"
Tractive Effort14507 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.14
Heating Ability
Firebox Area87.50 sq. ft
Grate Area13.69 sq. ft
Evaporative Heating Surface1018 sq. ft
Superheating Surface
Combined Heating Surface1018 sq. ft
Evaporative Heating Surface/Cylinder Volume218.73
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2190
Same as above plus superheater percentage2190
Same as above but substitute firebox area for grate area14000
Power L14003
Power MT441.25

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