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 ID13,811
Number in Class2
Road Numbers2
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft)13.50
Engine Wheelbase (ft)24.33
Ratio of driving wheelbase to overall engine wheebase 0.55
Overall Wheelbase (engine & tender) (ft)
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)113,000
Engine Weight (lbs)145,000
Tender Loaded Weight (lbs)100,000
Total Engine and Tender Weight (lbs)245,000
Tender Water Capacity (gals)5000
Tender Fuel Capacity (oil/coal) (gals/tons)10
Minimum weight of rail (calculated) (lb/yd)63
Geometry Relating to Tractive Effort
Driver Diameter (in)56.50
Boiler Pressure (psi)180
High Pressure Cylinders (dia x stroke) (in)19" x 26"
Tractive Effort (lbs)25,417
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.45
Heating Ability
Firebox Area (sq ft)164
Grate Area (sq ft)28.10
Evaporative Heating Surface (sq ft)2348
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)2348
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 area29,520
Power L16294
Power MT368.39