Baldwin DS-4-4-1000

The Baldwin DS-4-4-1000 were two models of four-axle 1,000 horsepower (746 kW) diesel-electric switching locomotives built by the Baldwin Locomotive Works between 1946 and 1951. The first models (56 locomotives) were powered by an 8-cylinder normally aspirated prime mover, but from 1948, a change was made to the second model powered by a 6-cylinder turbocharged engine. These two models replaced the VO-1000 in Baldwin's catalogue, and were in turn replaced by the S-12 in 1951.

Baldwin DS-4-4-1000-NA (608NA)
Baldwin DS-4-4-1000 #41, of the Chicago Great Western at a yard in Chicago, Illinois on September 10. 1967
Type and origin
Power typeDiesel-electric
BuilderBaldwin Locomotive Works
ModelDS-4-4-1000 (608NA)
Build dateJune 1946 – January 1948
Total produced56
Specifications
Configuration:
​
 • AARB-B
Gauge4 ft 8+1⁄2 in (1,435 mm)
Prime moverBaldwin 608NA
Engine typeFour-stroke diesel
AspirationNormally aspirated, solid injection
Displacement1,979 cu in (32.43 l) per cylinder
15,831 cu in (259.42 l) total
GeneratorDC generator
Traction motorsDC traction motors
CylindersStraight-8
Cylinder size12+3⁄4 in × 15+1⁄2 in (324 mm × 394 mm)
TransmissionElectric
Loco brakeAir
Train brakesAir
Performance figures
Power output1,000 hp (746 kW)
Career
LocaleNorth America
Balwin DS-4-4-1000-SC (606SC)
Pennsylvania Railroad DS4-4-1000-SC #5586 in Conway Yard, Conway, Pennsylvania (date unknown)
Type and origin
Power typeDiesel-electric
BuilderBaldwin Locomotive Works
ModelDS-4-4-1000 (606SC)
Build dateJanuary 1948 – November 1951
Total produced446
Specifications
Configuration:
​
 • AARB-B
Gauge4 ft 8+1⁄2 in (1,435 mm)
Length46 ft 6+1⁄4 in (14.18 m)
Width9 ft 11+1⁄4 in (3.03 m)
Height14 ft (4.27 m)
Loco weight230,000 lb (100,000 kg)
Prime moverBaldwin 606SC
RPM range625 rpm max.
Engine typeFour-stroke diesel
AspirationTurbocharged
Displacement1,979 cu in (32.43 l) per cylinder
11,874 cu in (194.58 l) total
GeneratorWestinghouse 480DC
Traction motorsWestinghouse 362-D, 4 off
CylindersStraight-6
Cylinder size12+3⁄4 in × 15+1⁄2 in (324 mm × 394 mm)
Loco brakeAir
Train brakesAir
Performance figures
Power output1,000 hp (746 kW)
Tractive effort57,500 lb (26,100 kg)
Career
LocaleNorth America

Original owners

608NA engine
RailroadQuantityRoad NumbersNotes
Belt Railway of Chicago1405
Copper Range Railroad2100–101
Detroit Terminal Railroad1103
Erie Railroad2600–601
Missouri-Kansas-Texas Railroad111000–1010renumbered 22–32 in 1960; rebuilt by EMD with 1000-hp 12-567C engines between February 1959 and April 1960
New York, Chicago and St. Louis Railroad ("Nickel Plate Road")2100–101
Norfolk Southern Railway21001–1002
Reading Company1426–39
St. Louis Southwestern Railway ("Cotton Belt")51023–1027
Seaboard Air Line Railroad81417–1424
U.S. Steel, Geneva Steel Division621–26
Western Maryland Railway2133–134
Total56

606SC engine
RailroadQuantityRoad NumbersNotes
Akron and Barberton Belt Railroad126
American Smelting and Refining Company2101–102
Atchison, Topeka and Santa Fe Railway412200 (second), 2260–2299
Atlanta and West Point Rail Road2676–677
Baldwin Locomotive Works (test)1100DFDual Fuel experiment, rebuilt to
standard specification and sold
to Patapsco and Back Rivers
Railroad #335
Baltimore and Ohio Railroad49376–399, 438–462renumbered 9225–9273
Bessemer and Lake Erie Railroad1282to Geneva Steel #38
Calumet and Hecla Mining Company2201–202to Escanaba and Lake Superior
Canadian Pacific Railway117065–7075built by Baldwin Locomotive Works;
1 preserved in Toronto (7069)
Central of Georgia Railway236–37
Central Railroad of Pennsylvania (Central Railroad of New Jersey)31073–1075
Chicago and North Western Railway51018–1022
Chicago Great Western Railway1032–41
Chicago, Milwaukee, St. Paul and Pacific Railroad ("Milwaukee Road")101692–1697, 1901–1904renumbered 940–949
Chicago, St. Paul, Minneapolis and Omaha Railway ("Omaha Road")299–100
Erie Railroad15602–616
Georgia Railroad1921
Ironton Railroad2750–751
Kentucky and Indiana Terminal Railroad253–54
Lehigh Valley Railroad8140–148
Long Island Rail Road1450
Minneapolis, St. Paul and Sault Ste. Marie Railroad ("Soo Line")2311–312
Missouri Pacific Railroad179120–9127, 9133–9141renumbered 1066–1073, 1074–1082
Missouri Pacific Railroad (St. Louis, Brownsville and Mexico Railway)89148–9149, 9162–9167renumbered 1083, —, 1092–1097
Oakland Terminal Railway1101
Oliver Iron Mining Company5928–932
Patapsco and Back Rivers Railroad8337–344
Pennsylvania Railroad1365550–5590, 5968–5979, 9050–9079, 9122–9275, 9434PRR Class BS-10a
Reading Company30700–729
St. Louis-San Francisco Railway ("Frisco")4238–241
Seaboard Air Line Railroad271435–1461to Seaboard Coast Line Railroad #51–73
Southern Railway52285–2289
Southern Pacific Company101393–1402
Terminal Railroad Association of St. Louis2602–603
Union Pacific Railroad51206–1210
United States Army Corps of Engineers2L-4, W8380
U.S. Steel, Carnegie-Illinois Steel Division374–76
U.S. Steel, Geneva Steel Division627–32
Wabash Railroad1304rebuilt as calf (without a cab) in 1961 after collision damage.
Western Railway of Alabama1630
Total446

References
  • Dorin, Patrick C. (1972). Chicago and North Western Power. Burbank, California: Superior Publishing. p. 161. ISBN 0-87564-715-4.
  • Kirkland, John F. (November 1994). The Diesel Builders volume 3: Baldwin Locomotive Works. Pasadena, California: Interurban Press. ISBN 0-916374-93-9.
  • Pinkpank, Jerry A (1973). The Second Diesel Spotter's Guide. Kalmbach Books. pp. 282, 289. ISBN 0-89024-026-4.
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