The ALCO RS-1 was a 4-axle diesel-electric locomotive

Locomotive

A locomotive is a railway vehicle that provides the motive power for a train. The word originates from the Latin loco – "from a place", ablative of locus, "place" + Medieval Latin motivus, "causing motion", and is a shortened form of the term locomotive engine, first used in the early 19th...

 built by Alco-GE

Alco-GE

Alco-GE was a partnership between the American Locomotive Company and General Electric that lasted from 1940 to 1953. Their main competitor was EMD. Under this arrangement, Alco produced the locomotive body and prime mover, and GE supplied the electrical gear...

 between 1941 and 1953 and the American Locomotive Company

American Locomotive Company

The American Locomotive Company, often shortened to ALCO or Alco , was a builder of railroad locomotives in the United States.-Early history:...

 from 1953 to 1960. This model has the distinction of having the longest production run of any diesel locomotive for the North America

North America

North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

n market.

The carbody configuration of the RS-1 pioneered the road switcher

Road switcher

A road switcher is a type of railroad locomotive used for delivering or picking up cars outside of a railroad yard. Since the road switcher must work some distance away from a yard, it needs to be able to operate at road speeds, it must also have high-visibility while it is switching, and it must...

 type of diesel locomotive. Most locomotives built since have followed this basic design.

The first thirteen production locomotives were requisitioned by the US Army, the five railroads affected had to wait while replacements were manufactured. The requisitioned RS-1s were remanufactured by ALCO into six axle RSD-1s for use on the Trans Iranian Railroad to supply the Soviet Union during World War Two.

First Thirteen

Railroad	Quantity	Road numbers	Notes
Atlanta and St. Andrews Bay Railroad	3	901–903	to US Army 8010–8012
Chicago, Milwaukee, St. Paul and Pacific Railroad Chicago, Milwaukee, St. Paul and Pacific Railroad The Milwaukee Road, officially the Chicago, Milwaukee, St. Paul and Pacific Railroad , was a Class I railroad that operated in the Midwest and Northwest of the United States from 1847 until its merger into the Soo Line Railroad on January 1, 1986. The company went through several official names...  (“Milwaukee Road”)	2	1678–1679	to US Army 8002–8003
Chicago, Rock Island and Pacific Railroad Chicago, Rock Island and Pacific Railroad The Chicago, Rock Island and Pacific Railroad was a Class I railroad in the United States. It was also known as the Rock Island Line, or, in its final years, The Rock.-Incorporation:...	4	746–749	to US Army 8004, 8007, 8005, 8006; 748 first RS-1 built in 3/41
New York, Susquehanna and Western Railroad	2	231, 233	to US Army 8000–8001
Tennessee Coal, Iron and Railroad Company Tennessee Coal, Iron and Railroad Company The Tennessee Coal, Iron and Railroad Company , also known as TCI and the Tennessee Company, was a major American steel manufacturer with interests in coal and iron ore mining and railroad operations. Originally based entirely within Tennessee, it relocated most of its business to Alabama in the...	2	601–602	to US Army 8008–8009
Total	13

Remainder of production

Railroad	Quantity	Road Numbers	Notes
Akron, Canton and Youngstown Railroad Akron, Canton and Youngstown Railroad The Akron, Canton and Youngstown Railroad was a railroad that existed between 1907 and 1982, running from Mogadore west to Delphos, Ohio, United States. It began as the Akron, Canton and Youngstown Railway, a short line connecting Mogadore to Akron...	1	D-2
Alabama, Tennessee and Northern Railway	11	101–111	To SLSF 101-111
Alaska Railroad Alaska Railroad The Alaska Railroad is a Class II railroad which extends from Seward and Whittier, in the south of the state of Alaska, in the United States, to Fairbanks , and beyond to Eielson Air Force Base and Fort Wainwright in the interior of that state...	2	1000–1001
Alton Railroad Alton Railroad The Alton Railroad was the final name of a railroad linking Chicago to Alton, Illinois, St. Louis, Missouri, and Kansas City, Missouri. Its predecessor, the Chicago and Alton Railroad , was purchased by the Baltimore and Ohio Railroad in 1931 and was controlled until 1942 when the Alton was...	10	50–59
Ann Arbor Railroad	2	20–21
Atchison, Topeka and Santa Fe Railway Atchison, Topeka and Santa Fe Railway The Atchison, Topeka and Santa Fe Railway , often abbreviated as Santa Fe, was one of the larger railroads in the United States. The company was first chartered in February 1859...	6	2385–2388, 2394–2395	2385–2388 renumbered 2396–2399
Atlanta and St. Andrews Bay Railroad	10	904–913
Atlantic and East Carolina Railway	1	500
Bamberger Railroad	1	570	to Union Pacific
Central Railroad of New Jersey Central Railroad of New Jersey The Central Railroad of New Jersey , commonly known as the Jersey Central Lines or CNJ, was a Class I railroad with origins in the 1830s, lasting until 1976 when it was absorbed into Conrail with the other bankrupt railroads of the Northeastern United States...	6	1200–1205
Chesapeake and Ohio Railway Chesapeake and Ohio Railway The Chesapeake and Ohio Railway was a Class I railroad formed in 1869 in Virginia from several smaller Virginia railroads begun in the 19th century. Led by industrialist Collis P...	2	5114–5115
Chicago and Eastern Illinois Railway	4	115–118
Chicago and North Western Railway Chicago and North Western Railway The Chicago and North Western Transportation Company was a Class I railroad in the Midwest United States. It was also known as the North Western. The railroad operated more than of track as of the turn of the 20th century, and over of track in seven states before retrenchment in the late 1970s...	6	1066–1069, 1080–1081
Chicago and Western Indiana Railroad Chicago and Western Indiana Railroad The Chicago and Western Indiana Railroad was the owner of Dearborn Station in Chicago and the trackage leading to it. It was owned equally by five of the railroads using it to reach the terminal, and kept those companies from needing their own lines into the city...	12	252–263
Chicago, Milwaukee, St. Paul and Pacific Railroad Chicago, Milwaukee, St. Paul and Pacific Railroad The Milwaukee Road, officially the Chicago, Milwaukee, St. Paul and Pacific Railroad , was a Class I railroad that operated in the Midwest and Northwest of the United States from 1847 until its merger into the Soo Line Railroad on January 1, 1986. The company went through several official names...  (“Milwaukee Road”)	5	1676, 1677, 961–963
Chicago, Rock Island and Pacific Railroad Chicago, Rock Island and Pacific Railroad The Chicago, Rock Island and Pacific Railroad was a Class I railroad in the United States. It was also known as the Rock Island Line, or, in its final years, The Rock.-Incorporation:...	11	735–745
Duluth, South Shore and Atlantic Railway Duluth, South Shore and Atlantic Railway The Duluth, South Shore and Atlantic Railway was an American railroad serving the Upper Peninsula of Michigan and the Lake Superior shoreline of Wisconsin. It provided service from Sault Ste. Marie, Michigan, and St. Ignace, Michigan, westward through Marquette, Michigan to Superior, Wisconsin,...	8	100–107	to Soo Line Railroad
DuPont DuPont E. I. du Pont de Nemours and Company , commonly referred to as DuPont, is an American chemical company that was founded in July 1802 as a gunpowder mill by Eleuthère Irénée du Pont. DuPont was the world's third largest chemical company based on market capitalization and ninth based on revenue in 2009...	4	105–108
Gaylord Container Gaylord Container Corporation Gaylord Container Corporation was an integrated manufacturer of packaging materials, primarily corrugated containers. Operating from 1986–2002, most of the company's facilities were originally part of Crown Zellerbach's container division....	2	302–303
GE-Atomic Energy Commission United States Atomic Energy Commission The United States Atomic Energy Commission was an agency of the United States government established after World War II by Congress to foster and control the peace time development of atomic science and technology. President Harry S...	4	39-3729 – 39-3732
Genesee and Wyoming Railroad Genesee and Wyoming Railroad Genesee & Wyoming Inc. is a short-line railroad holding company that owns or maintains interests in 63 railroads throughout six countries , and operates more than of owned and leased track, with more than under additional track-access arrangements...	2	25, 30
Grand Trunk Western Railway	2	1950–1951	Last RS-1s built for US Railroad
Great Northern Railway Great Northern Railway (US) The Great Northern Railway , running from Saint Paul, Minnesota, to Seattle, Washington—more than 1,700 miles —was the creation of the 19th century railroad tycoon James J. Hill and was developed from the Saint Paul and Pacific Railroad...	4	182–185
Gulf, Mobile and Ohio Railroad Gulf, Mobile and Ohio Railroad The Gulf, Mobile and Ohio was a Class I railroad in the central United States whose primary routes extended from Mobile, Alabama, and New Orleans, Louisiana, to St...	24	1102–1117, 1120–1127
Illinois Terminal Railroad Illinois Terminal Railroad The Illinois Terminal Railroad, known as the Illinois Traction System until 1937, was a heavy duty interurban electric railroad with extensive passenger and freight business in central and southern Illinois from 1896 to 1982...	6	750–752, 754–756
Kansas City Southern Railway Kansas City Southern Railway The Kansas City Southern Railway , owned by Kansas City Southern Industries, is the smallest and second-oldest Class I railroad company still in operation. KCS was founded in 1887 and is currently operating in a region consisting of ten central U.S. states...	4	1110–1113
Lake Erie, Franklin and Clarion Railroad Lake Erie, Franklin and Clarion Railroad The Lake Erie, Franklin, and Clarion Railroad was a fifteen mile long short line that ran from a Conrail connection at Summerville, Pennsylvania, to Clarion, Pennsylvania, the county seat of Clarion County, and included a short branch from Sutton to Hedrick...	2	20–21
Lake Superior and Ishpeming Railroad Lake Superior and Ishpeming Railroad The Lake Superior and Ishpeming Railroad , a U.S. railroad offering service from Marquette, Michigan, to nearby locations in Michigan's Upper Peninsula, began operations in 1896...	3	1001–1003
Long Island Rail Road Long Island Rail Road The Long Island Rail Road or LIRR is a commuter rail system serving the length of Long Island, New York. It is the busiest commuter railroad in North America, serving about 81.5 million passengers each year. Established in 1834 and having operated continuously since then, it is the oldest US...	9	461–469
Midland Continental Railroad	2	401–402
Minneapolis and St. Louis Railway Minneapolis and St. Louis Railway The Minneapolis and St. Louis Railway was an American Class I railroad that built and operated lines radiating south and west from Minneapolis, Minnesota which existed for 90 years from 1870 to 1960....	35	various	renumbered 200–234
Ferrocarriles Nacionales de México Ferrocarriles Nacionales de México Ferrocarriles Nacionales de México, was Mexico's state owned railroad company from 1938 to 1998, and prior to 1938 a major railroad controlled by the government that linked Mexico City to the major cities of Nuevo Laredo and Ciudad Juárez on the U.S. border...	64	5606–5663, (5619–5624 twice)	5619–5621 (first) built by Montreal Locomotive Works Montreal Locomotive Works Montreal Locomotive Works was a Canadian railway locomotive manufacturer which existed under several names from 1883–1985, producing both steam and diesel locomotives. For a number of years it was a subsidiary of the American Locomotive Company...  5663 last RS-1 built 3/60
New York, New Haven and Hartford Railroad New York, New Haven and Hartford Railroad The New York, New Haven and Hartford Railroad , was a railroad that operated in the northeast United States from 1872 to 1968 which served the states of Connecticut, New York, Rhode Island, and Massachusetts...	12	0660–0671
New York Central Railroad New York Central Railroad The New York Central Railroad , known simply as the New York Central in its publicity, was a railroad operating in the Northeastern United States...	14	8100–8113	renumbered 9900–9913
New York, Susquehanna and Western Railway New York, Susquehanna and Western Railway The New York, Susquehanna and Western Railway , also known as the Susie-Q, or simply the Susquehanna, is a Class II American freight railway operating over 500 miles of track in the northeastern states of New York, Pennsylvania and New Jersey. It was formed in 1881 from the merger of several...	16	230–256 (even numbers only), 231 and 233 (second)
Northern Pacific Railway Northern Pacific Railway The Northern Pacific Railway was a railway that operated in the west along the Canadian border of the United States. Construction began in 1870 and the main line opened all the way from the Great Lakes to the Pacific when former president Ulysses S. Grant drove in the final "golden spike" in...	4	155–158	renumbered 800–803
Pennsylvania Railroad Pennsylvania Railroad The Pennsylvania Railroad was an American Class I railroad, founded in 1846. Commonly referred to as the "Pennsy", the PRR was headquartered in Philadelphia, Pennsylvania....	27	5619–5640, 5906, 8485–8486, 8857–8858
Rutland Railroad Rutland Railroad The Rutland Railway was a small railroad in the northeastern United States, primarily in the state of Vermont but extending into the state of New York. The earliest ancestor of the Rutland, the Rutland & Burlington Railroad, was chartered in 1843 by the state of Vermont to build between Rutland...	6	400–405
Minneapolis, St. Paul and Sault Ste. Marie Railroad Minneapolis, St. Paul and Sault Ste. Marie Railroad The Minneapolis, St. Paul and Sault Ste. Marie Railroad was a Class I railroad subsidiary of the Canadian Pacific Railway in the Midwest U.S. Commonly known as the Soo Line after the phonetic spelling of Sault, it was merged with several other major CP subsidiaries on January 1, 1961 to form the...  (“Soo Line”)	4	350–353
Soo Line (Wisconsin Central Railway Wisconsin Central Railway The original Wisconsin Central Railroad Company was established by an act of the Wisconsin State Legislature and incorporated in February 1871. It built track throughout Wisconsin, connecting to neighboring states, before being leased to Northern Pacific Railway between 1889–1893... )	9	2360–2368
Spokane International Railroad Spokane International Railroad The Spokane International Railroad was a short line railroad between Spokane, Washington and the Canadian Pacific Railway at Kingsgate, British Columbia...	12	200–211
Spokane, Portland and Seattle Railway Spokane, Portland and Seattle Railway The Spokane, Portland and Seattle Railway was a United States-based railroad incorporated in 1905. It was a joint venture by the Great Northern Railway and the Northern Pacific Railway to build a railroad along the north bank of the Columbia River....	2	50–51
Spokane, Portland and Seattle Railway (Oregon Electric Railway Oregon Electric Railway The Oregon Electric Railway was an interurban railroad line in the U.S. state of Oregon that linked Portland to Eugene. Service from Portland to Salem, Oregon, began in 1907. The Spokane, Portland and Seattle Railway purchased the system in 1910, and extended service to Eugene in 1912... )	4	52–55
Tennessee Coal, Iron and Railroad Company Tennessee Coal, Iron and Railroad Company The Tennessee Coal, Iron and Railroad Company , also known as TCI and the Tennessee Company, was a major American steel manufacturer with interests in coal and iron ore mining and railroad operations. Originally based entirely within Tennessee, it relocated most of its business to Alabama in the...	3	602–604
United States Navy United States Navy The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...	1	6	renumbered 65-00078
Washington Terminal Company Washington Terminal Company The Washington Terminal Company was a corporation created in Washington, D.C. to provide support to railroads using Washington's Union Station. The company was established in 1901 and was jointly owned by the Baltimore and Ohio Railroad and the Philadelphia, Baltimore and Washington Railroad. The...	25	40–64
Arabian American Oil Company (Saudi Arabia Saudi Arabia The Kingdom of Saudi Arabia , commonly known in British English as Saudi Arabia and in Arabic as as-Sa‘ūdiyyah , is the largest state in Western Asia by land area, constituting the bulk of the Arabian Peninsula, and the second-largest in the Arab World... )	6	A11x50, A11x51, 1002–1005
Estrada de Ferro Central do Brasil Estrada de Ferro Central do Brasil The Estrada de Ferro Central do Brasil was one of the principal railways of Brazil, uniting the states of Rio de Janeiro, São Paulo and Minas Gerais.-Origins:...	38	3100–3137
São Paulo Railway São Paulo Railway São Paulo Railway was a privately owned British railway company in Brazil, which operated the gauge railway from the seaport at Santos via São Paulo to Jundiaí... , (Brazil Brazil Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people... )	6	504–509	to Estrada de Ferro Santos a Jundiaí
Estrada de Ferro Santos a Jundiaí (Brazil Brazil Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people... )	2	510–511

Preservation

Several examples exist at tourist railways and railway museums, including:

Grand Trunk Western 1951 (last domestic RS-1 produced) at the Illinois Railway Museum

Illinois Railway Museum

The Illinois Railway Museum is the largest railroad museum in the United States and is located in Union, Illinois, northwest of Chicago...

Chicago, Rock Island & Pacific 745 (believed to be the oldest existing RS-1, and one of the replacements for the 13 taken by the U.S. Army) at the Louisiana Steam Train Association yard in Jefferson, LA

Louisiana

Louisiana is a state located in the southern region of the United States of America. Its capital is Baton Rouge and largest city is New Orleans. Louisiana is the only state in the U.S. with political subdivisions termed parishes, which are local governments equivalent to counties...

Eastman Kodak Company 9 (built as Chicago & Western Indiana 260, sold to Genesee & Wyoming in 1971 and then to EKC) is preserved at the Rochester & Genesee Valley Railroad Museum

Rochester & Genesee Valley Railroad Museum

The Rochester and Genesee Valley Railroad Museum is an operating railroad museum located in Industry, New York. The museum started in 1971 with the leasing of a former Erie Railroad Depot from the Erie Lackawanna Railroad...

.

Green Mountain Railroad 405 (former Rutland Railway 405, serial number 79575)

Catskill Mountain Railroad #400 (out of service & under repair) and #401 (operating) tourist train in Kingston NY.

Duluth, South Shore and Atlantic Railway

Duluth, South Shore and Atlantic Railway

The Duluth, South Shore and Atlantic Railway was an American railroad serving the Upper Peninsula of Michigan and the Lake Superior shoreline of Wisconsin. It provided service from Sault Ste. Marie, Michigan, and St. Ignace, Michigan, westward through Marquette, Michigan to Superior, Wisconsin,...

 #101, the only known locomotive existing from that railroad, is at the Lake Superior Railroad Museum

Lake Superior Railroad Museum

The Lake Superior Railroad Museum is a railroad museum in Duluth, Minnesota.The museum has seven steam, fourteen diesel and two electric locomotives, and over 40 other pieces of rolling stock...

 and has been restored for occasional use on the North Shore Scenic Railroad

North Shore Scenic Railroad

The North Shore Scenic Railroad is a heritage railroad that operates between Duluth, Minnesota and Two Harbors, Minnesota, USA.The railroad is owned by the Lake Superior Railroad Museum and offers several different types of passenger excursion trains between May 28 and October 15 each year...

.