Rockingham 4-6-0 "Ten-wheeler" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 2 (Locobase 13811)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 39, p.39. Works number was 36808 in August 1911.

The Rockingham was organized in 1910 to operate from Roberdel through its namesake city south to Gibson; it was later extended to Bennettsville, 31 miles in all. It was owned by the Cheraw & Darlington and was sold in 1922 to the Atlantic Coast Line as an independent subsidiary and remained in operation until 1968.

Specifications by Steve Llanso of Sweat House Media
Locobase ID13811
Number in Class2
Road Numbers2
Number Built1
Valve GearWalschaert
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 Drivers113000 lbs
Engine Weight145000 lbs
Tender Light Weight100000 lbs
Total Engine and Tender Weight245000 lbs
Tender Water Capacity5000 gals
Tender Fuel Capacity (oil/coal)10 tons
Minimum weight of rail (calculated)63 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter56.50"
Boiler Pressure180 psi
Cylinders (dia x stroke)19" x 26"
Tractive Effort25417 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.45
Heating Ability
Firebox Area164 sq. ft
Grate Area28.10 sq. ft
Evaporative Heating Surface2348 sq. ft
Superheating Surface
Combined Heating Surface2348 sq. ft
Evaporative Heating Surface/Cylinder Volume275.20
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5058
Same as above plus superheater percentage5058
Same as above but substitute firebox area for grate area29520
Power L16294
Power MT368.39

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