Rock Island Southern 4-6-0 "Ten-wheeler" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 213 (Locobase 13329)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 39, p. 163. Works numbers were 36292 in March 1911 and 37050 in November.

When the Agricola de Colombres had to forego the delivery of 6 Ten-wheelers in early 1911, Baldwin was able to place these orphans on several short lines in the United States.

One Rock Island Southern locomotive was redirected to the Alabama, Tennessee & Northern (see Locobase 13330). The other two went to the RIS, an unusual combination of electric traction and steam service. Chartered as interurban Western Illinois Traction Company, it was reorganized as the Rock Island Southern Traction Company in 1905. The Eastern Division was all-electric between Monmouth and Galesburg. Steam provided freight service between Monmouth and Rockford in the north and these engines operated on that segment.

Specifications by Steve Llanso of Sweat House Media
Locobase ID13,329
RailroadRock Island Southern
Number in Class2
Road Numbers213, 220
Number Built2
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)11.33
Engine Wheelbase (ft)22.17
Ratio of driving wheelbase to overall engine wheebase 0.51
Overall Wheelbase (engine & tender) (ft)49.04
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)96,000
Engine Weight (lbs)124,000
Tender Loaded Weight (lbs)80,000
Total Engine and Tender Weight (lbs)204,000
Tender Water Capacity (gals)4000
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)53
Geometry Relating to Tractive Effort
Driver Diameter (in)56
Boiler Pressure (psi)180
High Pressure Cylinders (dia x stroke) (in)18" x 26"
Tractive Effort (lbs)23,016
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.17
Heating Ability
Firebox Area (sq ft)150
Grate Area (sq ft)22.40
Evaporative Heating Surface (sq ft)1918
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)1918
Evaporative Heating Surface/Cylinder Volume250.47
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4032
Same as above plus superheater percentage4032
Same as above but substitute firebox area for grate area27,000
Power L15853
Power MT403.24

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