Kennecott Copper Corporation ALCO RSD-5 locomotive No. 201 on display at Snoqualmie Depot, Snoqualmie, Washington.

By Joe Mabel, CC BY-SA 3.0,

Kennecott Copper Corporation ALCO RSD-5 locomotive No. 201 on display at Snoqualmie Depot, Snoqualmie, Washington.
Alco logo.
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ALCO RSD-5 Diesel Electric Road Switcher Locomotive
The ALCO RSD-5 was a diesel-electric locomotive of the road switcher type rated at 1,600 horsepower (1.2 MW), that rode on a pair of three-axle trucks, having a C-C wheel arrangement.

Basically an upgraded version of the earlier ALCO RSD-4, and used in much the same manner as its four-axle counterpart, the ALCO RS-3, the six-motor design allowed better tractive effort at lower speeds.

Original owners

American Locomotive Company (demonstrator)
Quantity: 1
Road numbers: 1606
to ATSF 2157

Atchison, Topeka and Santa Fe Railway
Quantity: 52
Road numbers: 2110–2156, 2158–2162

Birmingham Southern Railroad
Quantity: 1
Road numbers: 160

Chesapeake and Ohio Railway
Quantity: 26
Road numbers: 5570–5595

Chicago and North Western Railway
Quantity: 10
1665–1667, 1684–1690

Central Railroad of New Jersey
Quantity: 1
Road numbers: 1615

Chicago, Milwaukee, St. Paul and Pacific Railroad (Milwaukee Road)
Quantity: 6
Road numbers: 2150–2155
Renumbered 570–575

Pennsylvania Railroad
Quantity: 6
Road numbers: 8446–8451

St. Louis Southwestern Railway (Cotton Belt)
Quantity: 3
Road numbers: 270–272

Southern Pacific Company
Quantity: 36
Road numbers: 5294–5307, 5336–5339, 5445–5448, 5494–5507

Texas and New Orleans Railroad (Southern Pacific)
Quantity: 24
Road numbers: 155–176, 185–186

Utah Railway
Quantity: 1
Road numbers: 306
to DLMX 324

Ferrocarril del Pacífico
Quantity: 35
Road numbers: 801–835

Ferrocarriles Nacionales de México (NdeM)
Quantity: 2
Road numbers: 6900–6901

Total: 204

Preserved units

As of 2015, there are only two of these locomotives known to be in existence. Ex-CNW No. 1689, formerly owned by Gary Baloun, is currently in operation at the Illinois Railway Museum and repainted in its original Chicago & North Western colors. The other is the former Utah Railway No. 306, now painted as Nickel Plate Road No. 324 and owned by Doyle McCormack of the Oregon Rail Heritage Foundation.

ALCO RSD-5 Overview
Type and origin
Power type: Diesel-electric
Builder: ALCO
Model: RSD-5
Build date: 1952–1956
Total produced: 204 (167 USA, 37 Mexico)
AAR wheel arrangement: C-C
Gauge: 4 ft 8 1⁄2 in (1,435 mm) standard gauge
Trucks: ALCO trimount
Wheel diameter: 40 in (1,016 mm)
Minimum curve: 21° (274.37 ft or 83.63 m)
Wheelbase: 42 ft 3 in (12.88 m)
Length: 56 ft 6 in (17.22 m)
Width: 10 ft 1 5⁄8 in (3.089 m)
Height: 14 ft 8 1⁄4 in (4.477 m)
Locomotive weight: 287,000 lb (130,000 kg)
Fuel capacity: 1,300  gal (4,900 L; 1,100 imp gal)
Prime mover: Alco 244
RPM range: 1000 (max)
Engine type: V12 Four-stroke engine diesel
Aspiration: Turbocharger
Displacement: 8,016 cu in (131.36 L)
Generator: GE GT566
Traction motors: (6) GE 752
Cylinders: 12
Cylinder size: 9 in × 10.5 in (229 mm × 267 mm)
Performance figures
Power output: 1,600 hp (1.2 MW)
Tractive effort: 71,750 lb (32,550 kg)

Dispostion: 2 preserved

See also:

Alco Diesel Locomotives

Diesel Locomotives

American Locomotive Company