Southern Indiana 4-4-0 "American" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 19 (Locobase 12557)

Data from Baldwin Locomotive Works Specification for Engines, 1903, as digitized by the DeGolyer Library of Southern Methodist University Vol 24, p.75.. works numbers were 19847-19848 in December 1901, 20736-20737 in July 1902, 20964 in September.

Unlike much of the SIRR's motive power, these Eight-wheelers did not follow the successor Chicago, Terre Haute & Southeastern to the Chicago, Milwaukee, St Paul & Pacific.

Instead the 19 and 20 went in 1912 to the San Antonio, Uvalde & Gulf as their 6 & 7. When the MP took over the operations of the Link (or "Sausage") Route, the two were renumbered 930-931 and placed in the E-64 class.

By 1911, the three 1902 engines were sent back to Baldwin for rebuilding. Baldwin sold the trio to the Delaware & Northern as their 1, 3, and 2. The D & N was the product of a 1911 reorganization of the Delaware & Eastern. Although the D & E had been planned to connect Schenectady with Wilkes-Barre, Pa (and thus operate Alco engines exclusively, one supposes), it had only extended from East Branch to Arkville, New York.

(See the website, which recounts the story of this line, which remained in operation from 1911 to 1942.)

Specifications by Steve Llanso of Sweat House Media
Locobase ID12557
RailroadSouthern Indiana
Number in Class1
Road Numbers19-20, 16-18
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase 9.08'
Engine Wheelbase23.92'
Ratio of driving wheelbase to overall engine wheebase 0.38
Overall Wheelbase (engine & tender)46.37'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers72500 lbs
Engine Weight113000 lbs
Tender Light Weight
Total Engine and Tender Weight
Tender Water Capacity4000 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)60 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter66"
Boiler Pressure180 psi
Cylinders (dia x stroke)18" x 24"
Tractive Effort18026 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.02
Heating Ability
Firebox Area148.80 sq. ft
Grate Area18.50 sq. ft
Evaporative Heating Surface1643 sq. ft
Superheating Surface
Combined Heating Surface1643 sq. ft
Evaporative Heating Surface/Cylinder Volume232.44
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3330
Same as above plus superheater percentage3330
Same as above but substitute firebox area for grate area26784
Power L16686
Power MT406.62

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