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ALCO S-1 and S-3 Diesel-Electric Switcher Locomotive
The ALCO S-1 and S-3 were 660 horsepower (490 kW) switcher diesel-electric locomotives produced by ALCO and their Canadian subsidiary Montreal Locomotive Works (MLW). Basically, the two locomotives differed only in trucks, with the S-1 using ALCO's own Blunt trucks, and the S-3 riding on standard AAR type A switcher trucks. The S-1 was built between April 1940 and June 1950, with a total of 543 completed, while the S-3 was constructed between February 1950 and November 1953 (MLW until 1957) with total sales of 300. A modified version, the S-10, was built by MLW only; 13 were built between January and June 1958.

Identification
The S-1 and S-3 are distinguishable externally from the very similar S-2 and S-4 1,000 horsepower (750 kW) switchers in that they have a smaller exhaust stack with a round base and a smaller radiator shutter area on the nose sides. The S-1/S-3 radiator shutter area is taller than it is wide, while the S-2/S-4 radiator area is wider. The smaller stack is due to the lack of turbocharging.

The S-10 is not externally distinguishable from later Canadian-built S-3 locomotives; it differed mostly in electrical equipment.

Original owners
The S-1 and S-3 models were sold to an extensive list of railroads and industrial operators, as detailed below. Major owners of the S-1 included the New York Central Railroad (NYC), with 71 locomotives; the New Haven with 65 locomotives; the L&N with 45 locomotives; the C&NW, with 29 locomotives; and the Pennsylvania Railroad (PRR) with 27 locomotives. Major customers for the S-3 included the CP, with 101; the CN, with 49; the NYC, with 43 locomotives; the B&M, with 16; and the PRR, with 13. The MLW S-10 was sold only to the CP.

The totals below include export orders and MLW-built locomotives.

S-1
ALCO constructed approximately 535 S-1s for the US market between 1940–1950. In addition, it produced a single S-1 for Canadian Car and Munitions (of Canada), five for Estrada de Ferro Central do Brasil in Brazil, five for Ferrocarriles Nacionales de México in Mexico, and five for the Steel Company of Wales in the United Kingdom.

Alabama Great Southern Railroad

Quantity: 2
Road numbers: 6501–6502

Alameda Belt Line

Quantity: 3
Road numbers: D-1–D-3

Alco (demonstrator)

Quantity: 1
Road numbers: 660

Alco (plant switcher)

Quantity: 1
Road numbers: 5

Alco/War Department

Quantity: 1
Road numbers: GT-1304

American Steel and Wire

Quantity: 1
Road numbers: 2

Ann Arbor Railroad

Quantity: 2
Road numbers: 2–3

ARMCO Steel

Quantity: 3
Road numbers: E106–E108

Atchison, Topeka and Santa Fe Railway

Quantity: 2
Road numbers: 2303–2304

Baltimore and Ohio Railroad

Quantity: 6
Road numbers: 223–227, 250

Belt Railway of Chicago

Quantity: 3
Road numbers: 304–306

Birmingham Southern Railroad

Quantity: 2
Road numbers: 100, 101

Boston and Maine Railroad

Quantity: 10
Road numbers: 1163–1172

Broward County Port Authority

Quantity: 1
Road numbers: 410

Canadian Car and Munitions

Quantity: 1
Road numbers: 5

Estrada de Ferro Central do Brasil

Quantity: 5
Road numbers: 3001–3005

Central of Georgia Railway

Quantity: 2
Road numbers: 4, 6

Central Railroad of New Jersey

Quantity: 2
Road numbers: 1024, 1025

Champlain Paper and Fibre

Quantity: 1
Road numbers: 25

Chicago and Eastern Illinois Railroad

Quantity: 3
Road numbers: 103–105

Chicago and North Western Railway

Quantity: 29
Road numbers: 1202–1205, 1213, 1223–1229, 1232–1236, 1247–1258

Chicago Great Western Railway

Quantity: 5
Road numbers: 11–15

Chicago, St. Paul, Minneapolis and Omaha Railway

Quantity: 3
Road numbers: 56, 57, 69

Cincinnati, New Orleans and Texas Pacific Railway

Quantity: 2
Road numbers: 6000–6001

City of Prineville Railway

Quantity: 1
Road numbers: 101

Donner Hanna Coal Company

Quantity: 1
Road numbers: 2

Day and Zimmerman (Iowa Army Ammunition Depot)

Quantity: 1
Road numbers: 3-100

Defense Plant Corporation

Quantity: 2
Road numbers: DPC25.23, DPC25.24

Delray Connecting Railroad

Quantity: 4
Road numbers: 66, 68, 70, 72

Des Moines Union Railway

Quantity: 4
Road numbers: 1–4

Detroit and Mackinac Railway

Quantity: 1
Road numbers: 646

East St. Louis Junction Railroad

Quantity: 1
Road numbers: 100

Elgin, Joliet and Eastern Railway

Quantity: 5
Road numbers: 213–217

Erie Railroad

Quantity: 16
Road numbers: 306–321

Ford Motor Company

Quantity: 4
Road numbers: 6601–6604

Great Lakes Steel Corporation

Quantity: 1
Road numbers: 32

Green Bay and Western Railroad

Quantity: 1
Road numbers: 102

Gulf, Mobile and Ohio Railroad

Quantity: 4
Road numbers: 661–664

Hunken Conkey Construction

Quantity: 2
Road numbers: 1001–1002

Inland Steel

Quantity: 7
Road numbers: 53, 56, 61, 62, 64–66

Inland Waterways Corporation

Quantity: 1
Road numbers: 1

Iowa Transfer Railroad

Quantity: 1
Road numbers: 2

John Morrel and Company

Quantity: 1
Road numbers: 7

Kansas City Terminal Railway

Quantity: 5
Road numbers: 40–44

Kewaunee, Green Bay and Western Railroad

Quantity: 1
Road numbers: 103

Lehigh Valley Railroad

Quantity: 1
Road numbers: 117

Long Island Rail Road

Quantity: 14
Road numbers: 404–408, 413–420, 421

Louisville and Nashville Railroad

Quantity: 45
Road numbers: 16–29, 34–68

Maine Central Railroad

Quantity: 8
Road numbers: 953–960

Massena Terminal Railroad

Quantity: 2
Road numbers: 8, 9

Minnesota Transfer Railway

Quantity: 5
Road numbers: 60–64

Missouri Pacific Railroad

Quantity: 2
Road numbers: 9007, 9008

Nashville, Chattanooga and St. Louis Railway

Quantity: 4
Road numbers: 1–4

Ferrocarriles Nacionales de México (NdeM)

Quantity: 5
Road numbers: 5000-5004

Newburgh and South Shore Railway

Quantity: 7
Road numbers: 3–7, 9, 10

New Orleans and Lower Coast Railroad

Quantity: 3
Road numbers: 9013-9015

New York, New Haven and Hartford Railroad

Quantity: 65
Road numbers: 0931–0995

New Jersey, Indiana and Illinois Railroad

Quantity: 1
Road numbers: 1

New York Central Railroad

Quantity: 71
Road numbers: 590, 685–744, 864–873

New York, Chicago and St. Louis Railroad (Nickel Plate Road)

Quantity: 1
Road numbers: 85

Northern Pacific Railway

Quantity: 1
Road numbers: 131

Northern Pacific Terminal

Quantity: 5
Road numbers: 30–34

Pennsylvania Railroad

Quantity: 27
Road numbers: 5661–5670, 5954–5956, 9100–9103, 9237–9246

Point Comfort and Northern Railway

Quantity: 1
Road numbers: 5

Port Huron and Detroit Railroad

Quantity: 2
Road numbers: 51, 52

Portland Terminal Company

Quantity: 4
Road numbers: 1005-1008

Procter & Gamble

Quantity: 1
Road numbers: 9

Pullman Railroad

Quantity: 2
Road numbers: 20, 21

Reading Company

Quantity: 5
Road numbers: 50-54

Red River Ordnance Depot

Quantity: 1
Road numbers: 7372

Republic Steel

Quantity: 9
Road numbers: 15–17, 312–314, D840, D841, D810

River Terminal Railway

Quantity: 1
Road numbers: 52

St. Louis and O'Fallon Railway

Quantity: 1
Road numbers: 51

Seaboard Air Line

Quantity: 1
Road numbers: 1201

Sheffield Steel Corporation

Quantity: 3
Road numbers: 11–13

Solvay Processing Division, Allied Chemical

Quantity: 3
Road numbers: 1–3

South Buffalo Railway

Quantity: 4
Road numbers: 51, 52, 60, 61

Southern Pacific Company

Quantity: 4
Road numbers: 1017–1020

Southern Railway

Quantity: 3
Road numbers: 2000, 2001, 2006

South Omaha Terminal Railway

Quantity: 5
Road numbers: 1–5

Spokane, Portland and Seattle Railway

Quantity: 2
Road numbers: 10, 11
Note: 10 Sold to City of Prineville 102, 11 to Burlington Northern 11

Steel Company of Wales (UK)

Quantity: 5
Road numbers: 801–805

Studebaker

Quantity: 2
Road numbers: 2, 3

Tennessee Central Railway

Quantity: 1
Road numbers: 51

Tennessee Coal, Iron and Railroad Company

Quantity: 3
Road numbers: 700–702

Tennessee Copper

Quantity: 2
Road numbers: 104, 105

Terminal Railroad Association of St. Louis

Quantity: 4
Road numbers: 521–524

Texas and New Orleans Railroad

Quantity: 1
Road numbers: 10

Texaco

Quantity: 1
Road numbers: 19

Texas City Terminal Railway

Quantity: 2
Road numbers: 30, 31

Texas Pacific-Missouri Pacific Terminal Railroad of New Orleans

Quantity: 2
Road numbers: 3, 4

Timken Rolling Bearing Company

Quantity: 2
Road numbers: 5911, 5912

Toledo, Angola and Western Railway

Quantity: 1
Road numbers: 101

Traux Truer Coal

Quantity: 1
Road numbers: 10

Union Railroad

Quantity: 4
Road numbers: 451–454

Upper Merion and Plymouth Railroad

Quantity: 1
Road numbers: 54

U.S. Army

Quantity: 11
Road numbers: 7132-7136, 7141-7142, 7374-7375, 7459-7460

Wabash Railroad

Quantity: 9
Road numbers: 151–159

Weirton Steel

Quantity: 3
Road numbers: 200, 203, 204

Western Maryland Railway

Quantity: 1
Road numbers: 102

Western Pacific Railroad

Quantity: 8
Road numbers: 504–511

Youngstown Sheet and Tube

Quantity: 5
Road numbers: 661–665

Total Quantity: 543

S-3
ALCO and the Montreal Locomotive Works constructed approximately 300 S-3s for the North American market between 1950–1957. ALCO built 137; MLW built 163.

Manufactured by ALCO

Aluminum Company of America

Quantity: 1
Road numbers: 8

Ann Arbor Railroad

Quantity: 4
Road numbers: 4–7

Boston and Maine Railroad

Quantity: 16
Road numbers: 1173–1188

Brooks and Scanlon

Quantity: 2
Road numbers: 101, 102

Champion Paper

Quantity: 1
Road numbers: 2104

Chicago and North Western Railway

Quantity: 6
Road numbers: 1262–1267

Davenport, Rock Island and North Western Railway

Quantity: 7
Road numbers: 1–7

Davidson Chemical Division, W.R. Grace and Company

Quantity: 1
Road numbers: 101

El Dorado and Wesson Railway

Quantity: 1
Road numbers: 18

Ford Motor Company

Quantity: 7
Road numbers: 6605–6611

Frederick Snare Corporation

Quantity: 1
Road numbers: 7

General Portland Cement

Quantity: 1
Road numbers: 1

Graysonia, Nashville and Ashdown Railroad

Quantity: 1
Road numbers: 51

Greater Portland Public Development Corporation

Quantity: 1
Road numbers: 661

Humble Oil

Quantity: 1
Road numbers: 997

Louisville and Nashville Railroad

Quantity: 7
Road numbers: 69–75

Maine Central Railroad

Quantity: 2
Road numbers: 961, 962

Manistique and Lake Superior Railroad

Quantity: 1
Road numbers: 1

Mount Hood Railroad

Quantity: 1
Road numbers: 50

New York Central Railroad

Quantity: 43
Road numbers: 874–916

Pennsylvania Railroad

Quantity: 13
Road numbers: 8873–8885

Solvay Processing Division, Allied Chemical and Dye Corporation

Quantity: 1
Road numbers: 2

Southern Pacific Company

Quantity: 10
Road numbers: 1023–1032

Swift and Company

Quantity: 1
Road numbers: 664

Texas and Northern Railway

Quantity: 2
Road numbers: 3, 4

Texas City Terminal Railway

Quantity: 1
Road numbers: 32

Texaco

Quantity: 2
Road numbers: 21, 22

Washington, Idaho and Montana Railway

Quantity: 1
Road numbers: 30

West Pittston and Exeter Railway

Quantity: 1
Road numbers: 6

ALCO Total Quantity: 137

Manufactured by MLW

Bathhurst Power and Paper

Quantity: 1
Road numbers: 3

Canadian Arsenals

Quantity: 1
Road numbers: 1

Canadian National Railway

Quantity: 49
Road numbers: 8450–8498

Canadian Pacific Railway

Quantity: 101
Road numbers: 6500–6600

Essex Terminal Railway

Quantity: 1
Road numbers: 103

LaSalle Coke

Quantity: 1
Road numbers: 4

National Harbours Board

Quantity: 8
Road numbers: D2–D9

Price Brothers

Quantity: 1
Road numbers: 106

MLW Total Quantity: 163

Total Quantity: 300

S-10
MLW constructed 13 S-10s, all for the Canadian Pacific Railway:

Canadian Pacific Railway

Quantity: 13
Road numbers: 6601–6613

Preservation
Numerous S-1 and S-3 locomotives remain in use, and several are preserved:

Ex-U.S. Army S-1 No. 7372 is at the Western Pacific Railroad Museum and painted in Western Pacific colors.

Ex-Canadian Pacific MLW S-3 No. 6568 is at the Saskatchewan Railway Museum.

ALCO S-1 and S-3 Overview
Type and origin
Power type: Diesel
Builder: American Locomotive Company
Builder: Montreal Locomotive Works
Build date: April 1940–June 1950 (S-1)
Build date: February 1950–November 1953 (S-3)
Total produced: 543 (S-1)
Total produced: 300 (S-3)
Specifications
AAR wheel arrangement: B-B
Gauge: 4 ft 8 1⁄2 in (1,435 mm)
Trucks: Blunt (S-1)
Trucks: AAR type A (S-3)
Wheel diameter: 40 in (1,000 mm)
Minimum curve: 50°
Wheelbase: 30 ft (9.14 m)
Length: 45 ft (14 m)
Width: 10 ft 2 1⁄2 in (3.112 m)
Height: 14 ft 4 3⁄8 in (4.378 m)
Locomotive weight: 199,000 lb (90,000 kg)
Fuel capacity: 635 gal (2,400 L)
Prime mover: Alco 539
Engine type: Four-stroke diesel
Aspiration: Natural
Displacement: 9,572 cu in (156.86 l)
Generator: GE GT 552-A
Traction motors: 4 × GE 731
Cylinders Straight: 6
Cylinder size: 12 1⁄2 in × 13 in (318 mm × 330 mm)
Performance figures
Power output: 660 hp (490 kW)
Tractive effort: 49,790 lb (22,580 kg)
Career
Locale: North America, Brazil, United Kingdom

See also:

Alco Diesel-Electric Locomotives

Diesel-Electric Locomotives

American Locomotive Company

Locomotives

Mid-Continent Railway No. 7, an S-1, rests between trains on October 10, 2004.

By The original uploader was Slambo at English Wikipedia - Transferred from en.wikipedia to Commons by Oxyman using CommonsHelper., CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=7132745

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