Baldwin DRS-4-4-1500
Type and origin
Power typeDiesel-electric
BuilderBaldwin Locomotive Works
ModelDRS-4-4-1500
Build dateJuly 1947–May 1950
Total produced35
Specifications
Configuration:
  AARB-B
  UICBo′Bo′
Gauge4 ft 8+12 in (1,435 mm) standard gauge
Length57 ft 10+34 in (17.65 m)
Height14 ft (4.27 m)
Loco weight120 short tons (107 long tons; 109 t)
Prime moverBaldwin 608SC
Engine typeFour-stroke diesel
AspirationTurbocharged
Displacement15,832 cu in (259.44 L)
AlternatorWestinghouse YG42A
GeneratorWestinghouse 471A
Traction motorsWestinghouse 370F (4)
Cylinders8
Cylinder size12+34 in × 15+12 in (324 mm × 394 mm)
TransmissionElectric
Loco brakeStraight air
Train brakesAir
Performance figures
Maximum speed65 mph (105 km/h)
Power output1,500 hp (1,100 kW)
Tractive effort61,510 lbf (273.61 kN)

The Baldwin DRS-4-4-1500 was a diesel-electric locomotive of the road switcher type rated at 1,500-horsepower (1,100 kW), that rode on two-axle trucks, having a B-B wheel arrangement. It was manufactured by Baldwin Locomotive Works from 1947 until it was replaced in 1950 by the 1,600-horsepower (1,200 kW) AS-16.

Nine railroads bought 35 locomotives, with five railroads later buying the successor model.

RailroadQuantityRoad numbersNotes
Erie Railroad61100–1105
Lehigh Valley Railroad1200
Iron Mines of Venezuela (Bethlehem Steel Company)31–3
Minneapolis, St. Paul and Sault Ste. Marie Railroad ("Soo Line")8360–367
Missouri Pacific Railroad (St. Louis, Brownsville and Mexico Railway)44112–4115
New York Central Railroad27300–7301
Northern Pacific Railway2175–176Renumbered 500–501 to Burlington Northern 405-406
Pennsylvania-Reading Seashore Lines66000–6005
Western Maryland Railway3170–172
Total35

References

  • Kirkland, John F. (November 1994). The Diesel Builders volume 3: Baldwin Locomotive Works. Interurban Press. ISBN 0-916374-93-9.


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