Shelby County / South Carolina 4-6-0 "Ten-wheeler" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 4 (Locobase 14072)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 47, p. 260. Works number was 41012 in December 1913.

The SC Railway Company was incorporated in 1906 to link Shelbina to Shelbyville in Missouri. Distance covered was 8 mainline miles and connected the county seat to the Chicago, Burlington & Quincy. It was almost entirely an agricultural-products road: of the 18,900 miles counted as revenue-earning in 1921, only 900 were generated by passengers.

. The Ten-wheeler shown in this entry served the railroad until it was closed in March 1938.

Class B (Locobase 15620)

Data from South Carolina RR 1891 Locomotive Diagrams supplied in August 2013 by Allen Stanley from his ever-growing collection.

Class B-1 (Locobase 15796)

Data from South Carolina RR 1891 Locomotive Diagrams supplied in August 2013 by Allen Stanley from his ever-growing collection, supplemented by DeGolyer, Vol 10, p. 87. Works numbers were 5269, 5283, 5304, 5306, 6938, 6979, 6985 in September-October 1883. (Note: SC Railroad records show that #8 was built in their shops.)

Locobase wonders if the preparer of the 1891 diagrams might have had cognitive issues. In this case, the heating surface areas reflect the tube count shown in the current specifications. But the diagram gives a tube count of 196 tubes. It also gives the construction dates as 1880.

Specifications by Steve Llanso of Sweat House Media
Locobase ID14,072 15,620 15,796
RailroadShelby CountySouth CarolinaSouth Carolina
Number in Class188
Road Numbers419-261-8
Number Built188
BuilderBaldwinRhode IslandBurnham, Parry, Williams & Co
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)12.8314.4212.50
Engine Wheelbase (ft)23.1525.4922.65
Ratio of driving wheelbase to overall engine wheebase 0.55 0.57 0.55
Overall Wheelbase (engine & tender) (ft)47.87
Axle Loading (Maximum Weight per Axle) (lbs)31,88519,040
Weight on Drivers (lbs)72,90084,11053,240
Engine Weight (lbs)98,900106,00076,400
Tender Loaded Weight (lbs)80,000
Total Engine and Tender Weight (lbs)178,900
Tender Water Capacity (gals)40002000
Tender Fuel Capacity (oil/coal) (gals/tons)7
Minimum weight of rail (calculated) (lb/yd)414730
Geometry Relating to Tractive Effort
Driver Diameter (in)505454
Boiler Pressure (psi)180140140
High Pressure Cylinders (dia x stroke) (in)16" x 24"18" x 24"16" x 24"
Tractive Effort (lbs)18,80117,13613,540
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.88 4.91 3.93
Heating Ability
Firebox Area (sq ft)89135.3084.70
Grate Area (sq ft)1523.5014.07
Evaporative Heating Surface (sq ft)122114651174
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)122114651174
Evaporative Heating Surface/Cylinder Volume218.62207.26210.20
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation270032901970
Same as above plus superheater percentage270032901970
Same as above but substitute firebox area for grate area16,02018,94211,858
Power L1447438173604
Power MT405.90300.14447.72