East Broad Top R & C 4-6-0 "Ten-Wheeler" Locomotives in 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.

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID11,432
RailroadEast Broad Top R & C
Number in Class2
Road Numbers4, 10
Number Built2
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)12.50 / 3.81
Engine Wheelbase (ft / m)21.83 / 6.65
Ratio of driving wheelbase to overall engine wheebase 0.57
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)60,000 / 27,216
Engine Weight (lbs / kg)80,000 / 36,287
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)2500 / 9.47
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)33 / 16.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)48 / 1219
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)16" x 20" / 406x508
Tractive Effort (lbs / kg)14,507 / 6580.27
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.14
Heating Ability
Firebox Area (sq ft / m2)87.50 / 8.13
Grate Area (sq ft / m2)13.69 / 1.27
Evaporative Heating Surface (sq ft / m2)1018 / 94.61
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1018 / 94.61
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 area14,000
Power L14003
Power MT441.25

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