Baldwin DRS-4-4-1000

Baldwin DRS-4-4-1000

Type and origin
Power type Diesel-electric
Builder Baldwin Locomotive Works
Model DRS-4-4-10
Build date July 1948
March 1950
Total produced 22
Specifications
AAR wheel arr. B-B
Gauge 4 ft 8 12 in (1,435 mm) standard gauge
Prime mover 606SC
RPM range 625 rpm maximum
Engine type Straight-6 Four-stroke diesel
Aspiration Turbocharger
Displacement 1,979 cu in (32.43 L) per cylinder
11,874 cu in (194.58 L) total
Generator DC generator
Traction motors DC traction motors
Cylinders 6
Cylinder size 12 34 in × 15 12 in (324 mm × 394 mm)
Transmission Electric
Loco brake Straight air
Train brakes Air
Performance figures
Power output 1,000 hp (750 kW)
Career
Locale North America

The Baldwin DRS-4-4-1000 was a diesel-electric road switcher produced by the Baldwin Locomotive Works from July, 1948March, 1950. The units featured a 1,000 horsepower (750 kW), six-cylinder prime mover, and were configured in a B-B wheel arrangement mounted atop a pair of two-axle AAR Type-B road trucks, with all axles powered. They had a cast steel frame. The units were configured to normally run with the long hood in the forward position.

Only 9 were built for American railroads, with another 13 manufactured in January and February, 1949 by the Canadian Locomotive Company for the Esquimalt and Nanaimo Railway, the first railroad in Canada to dieselize its locomotive fleet. The DRS-4-4-1000 was (in most cases) visually indistinguishable from its 1,200 horsepower (890 kW) successor, the Baldwin RS-12. Only one intact example of the DRS-4-4-1000 is known to exist today (former CPR #8000), and is currently on display in Calgary, Alberta.

Units produced by Baldwin Locomotive Works (19481950)

Railroad Quantity Road numbers
Pennsylvania Railroad
6
55915594, 9276, 9277
Tennessee Central Railway
3
7577

Units produced by the Canadian Locomotive Company (1949)

Railroad Quantity Road numbers
Canadian Pacific Railway
13
80008012 (units worked the Esquimalt and Nanaimo Railway) 8000 preserved and on display.

References

External links

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