Baldwin S-8

The Baldwin S-8 was an 800-horsepower (600 kW) diesel-electric locomotive intended for use in yard switching. The Baldwin Locomotive Works produced a total of 63 units (61 for United States railroads and 2 for use in Cuba) between 1951 and 1953. Of these, nine were "calf" units built for Oliver Iron Mining Company in Minnesota. A tenth calf had been built for them on a verbal order, but when delivery was refused, it was fitted with a cab, and converted to a regular S-8.

Baldwin S-8
Type and origin
Power typeDiesel-electric
BuilderBaldwin Locomotive Works
ModelS-8
Build dateMarch 1951 – September 1954
Total produced54, plus 9 "calf" units
Specifications
Configuration:
​
 • AARB-B
 • UICB′B′
Gauge4 ft 8 1⁄2 in (1,435 mm) standard gauge
Prime mover606
RPM range625 rpm maximum
Engine typeStraight-6 Four-stroke diesel
AspirationNaturally aspirated, solid injection
Displacement1,979 cu in (32.43 L) per cylinder
11,874 cu in (194.58 L) total
GeneratorDC generator
Traction motorsDC traction motors
Cylinders6
Cylinder size12 3⁄4 in × 15 1⁄2 in (324 mm × 394 mm)
TransmissionElectric
Loco brakeAir
Train brakesAir
Performance figures
Power output800 hp (600 kW)
Career
LocaleUnited States and Cuba
DispositionTwo preserved, remainder scrapped

Original owners
RailroadQuantityRoad numbersNotes
American Rolling Mill Company
3
1151, 1152, 1201
Escanaba and Lake Superior Railroad
1
102
La Salle and Bureau County Railroad
1
8
McCloud Railway
1
31
Built with a single stack and space for a turbocharger for later conversion to a S-12, so is factored into the numbers of (and considered to be) an S-12
Medford Corporation, (Medford, Oregon)
1
8
Only Baldwin switcher built with dynamic brakes; preserved by the Southern Oregon Railway Historical Society
New Orleans Public Belt Railroad
2
50, 51
Oliver Iron Mining Company
9
1200A–1206A, 1214A, 1215A
"Cow" units
9
1200B–1206B, 1214B, 1215B
"Calf" units
Pennsylvania Railroad
6
8994–8999
Pennsylvania-Reading Seashore Lines
1
6006
Chicago, Rock Island and Pacific Railroad
5
802–806
Sharon Steel Corporation
8
3–10
Sloss-Sheffield Steel
4
33–36
United Railways of Havana, Cuba
2
8001, 8002
US Pipe and Foundry
1
37
Build as "calf"; fitted with cab before sale to USP&F; preserved by Heart of Dixie Railroad Museum (Calera, Alabama) as Jefferson Warrior 37
US Steel
1
13
Weyerhaeuser Company
2
103, 105
Youngstown Sheet and Tube
7
703, 800–805
Totals54A units
9B units

Only two intact examples of the S-8 are known to survive today, one of which is owned by a railroad museum, while the other is the property of a railway historical society.

References
  • Kirkland, John F. (November 1994). The Diesel Builders volume 3: Baldwin Locomotive Works. Pasadena, California: Interurban Press. ISBN 0-916374-93-9.
  • "Preserved Lima and Baldwin Diesels". Archived from the original on 22 June 2008. Retrieved 2008-05-22.


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