Baldwin DS-4-4-660

The Baldwin DS-4-4-660 was a four-axle 660 horsepower (490 kW) diesel-electric switcher built by the Baldwin Locomotive Works at it Eddystone, Pennsylvania factory between 1946 and 1949. It replaced the 660 horsepower (490 kW) VO-660 in their catalog, and was in turn replaced by the 750 horsepower (560 kW) DS-4-4-750. It was the low power companion to Baldwin's DS-4-4-1000 models.

Baldwin DS-4-4-660
A very rusty Baldwin DS-4-4-660 locomotive sits next to the NS main in Roanoke, VA. This is one of "The Lost Engines of Roanoke" and is Chesapeake Western #663.
Type and origin
Power typeDiesel-electric
BuilderBaldwin Locomotive Works
Build dateJune 1946 to May 1949
Total produced139
Specifications
Configuration:
  AARB-B
Gauge4 ft 8 12 in (1,435 mm)
Length46 ft 6 14 in (14.18 m)
Width9 ft 11 14 in (3.03 m)
Height14 ft (4.27 m)
Loco weight196,600 lb (89,200 kg)
Prime mover606NA
RPM range625 rpm max.
Engine typeFour-stroke diesel
AspirationNormally aspirated, solid injection
Displacement1,979 cu in (32.43 L) per cylinder
11,874 cu in (194.58 L) total
GeneratorDC type 480
Traction motorsWest’hse 362-D
CylindersStraight-6
Cylinder size12 34 in × 15 12 in (324 mm × 394 mm))
Loco brakeAir
Train brakesAir
Performance figures
Power output660 hp (492 kW)
Tractive effort56,500 lb (25,600 kg)
Career
LocaleNorth America

Original owners

RailroadQuantityRoad numbersNotes
American Cyanamid Company
1
13
American Rolling Mill Company
1
1001
Chesapeake Western Railway
3
661–663
Chicago, St. Paul, Minneapolis and Omaha Railway (“Omaha Road”)
1
71
Chicago and North Western Railway
3
1259–1261
Crows Nest Pass Coal
1
1
Escanaba and Lake Superior Railroad
1
101
Erie Railroad
5
381–385
Georgia Northern Railway
1
102
Long Island Rail Road
4
409–412
New Orleans Public Belt Railroad
6
44–49
Norfolk Southern Railway
3
661–663
Patapsco and Back Rivers Railroad
4
306–309
Pennsylvania Railroad
99
5957–5966, 9000–9049, 9110–9121, 9210–9236
PRR Class BS-6a
Sloss-Sheffield Steel
1
30
Tennessee Valley Authority
1
100
Wabash Railroad
2
201–202
Wyandotte Southern Railroad
1
D100
Wyandotte Terminal Railroad
1
104
Total
139

References

  • Dorin, Patrick C. (1972). Chicago and North Western Power. Burbank, California: Superior Publishing. p. 158. 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, 287. ISBN 0-89024-026-4.
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