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
Class4BB-1
Locobase ID14072 15620 15796
RailroadShelby CountySouth CarolinaSouth Carolina
CountryUSAUSAUSA
Whyte4-6-04-6-04-6-0
Number in Class188
Road Numbers419-261-8
GaugeStd5'5'
Number Built188
BuilderBaldwinRhode IslandBurnham, Parry, Williams & Co
Year191318801883
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase12.83'14.42'12.50'
Engine Wheelbase23.15'25.49'22.65'
Ratio of driving wheelbase to overall engine wheebase 0.55 0.57 0.55
Overall Wheelbase (engine & tender)47.87'
Axle Loading (Maximum Weight per Axle)31885 lbs19040 lbs
Weight on Drivers72900 lbs84110 lbs53240 lbs
Engine Weight98900 lbs106000 lbs76400 lbs
Tender Light Weight80000 lbs
Total Engine and Tender Weight178900 lbs
Tender Water Capacity4000 gals2000 gals
Tender Fuel Capacity (oil/coal)7 tons tons tons
Minimum weight of rail (calculated)41 lb/yard47 lb/yard30 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter50"54"54"
Boiler Pressure180 psi140 psi140 psi
Cylinders (dia x stroke)16" x 24"18" x 24"16" x 24"
Tractive Effort18801 lbs17136 lbs13540 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.88 4.91 3.93
Heating Ability
Firebox Area89 sq. ft135.30 sq. ft84.70 sq. ft
Grate Area15 sq. ft23.50 sq. ft14.07 sq. ft
Evaporative Heating Surface1221 sq. ft1465 sq. ft1174 sq. ft
Superheating Surface
Combined Heating Surface1221 sq. ft1465 sq. ft1174 sq. ft
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 area160201894211858
Power L1447438173604
Power MT405.90300.14447.72


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