Baldwin DRS-4-4-1000

Baldwin DRS-4-4-1000
Canadian Pacific Railway #8010.
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 Configuration: ​  • AAR B-B Gauge 4 ft 8 1⁄2 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 3⁄4 in × 15 1⁄2 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

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
Configuration:	​
• AAR	B-B
Gauge	4 ft 8 1⁄2 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 3⁄4 in × 15 1⁄2 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, 1948–March, 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.

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