ALCO RSD-12
Encyclopedia
The ALCO RSD-12 was a diesel-electric locomotive of the road switcher
type rated at 1800 hp, that rode on three-axle trucks
, having an C-C wheel arrangement.
Used in much the same manner as its four-axle counterpart, the ALCO RS-11
, though the six-motor design allowed better tractive effort at lower speeds.
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 rated at 1800 hp, that rode on three-axle trucks
Bogie
A bogie is a wheeled wagon or trolley. In mechanics terms, a bogie is a chassis or framework carrying wheels, attached to a vehicle. It can be fixed in place, as on a cargo truck, mounted on a swivel, as on a railway carriage/car or locomotive, or sprung as in the suspension of a caterpillar...
, having an C-C wheel arrangement.
Used in much the same manner as its four-axle counterpart, the ALCO RS-11
ALCO RS-11
The ALCO RS-11 is a diesel-electric locomotive of the road switcher type rated at 1,800 hp , that rode on two-axle trucks, having a B-B wheel arrangement.-Development:...
, though the six-motor design allowed better tractive effort at lower speeds.
Original buyers
| Railroad | Quantity | Road numbers | Notes |
|---|---|---|---|
| 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... |
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Renumbered 2007–2016 |
| 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... |
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| New York, Chicago and St. Louis Railroad New York, Chicago and St. Louis Railroad The New York, Chicago and St. Louis Railroad , abbreviated NYC&St.L, was a railroad that operated in the mid-central United States. Commonly referred to as the Nickel Plate Road, the railroad served a large area, including trackage in the states of New York, Pennsylvania, Ohio, Indiana, and Illinois... (“Nickel Plate Road”) |
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to Norfolk and Western Railway Norfolk and Western Railway The Norfolk and Western Railway , a US class I railroad, was formed by more than 200 railroad mergers between 1838 and 1982. It had headquarters in Roanoke, Virginia for most of its 150 year existence.... |
| 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.... |
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to Penn Central 6855–6879; to Conrail |
| Southern Pacific Company | |
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Renumbered 2950–2970 |
| Ferrocarril del Pacífico Ferrocarril del Pacífico The Ferrocarril del Pacífico is a former railroad line of Mexico that operated from Benjamín Hill, Sonora to Guadalajara, Jalisco via Mazatlán, Sinaloa. It was absorbed into Ferrocarriles Nacionales de México in 1984.... |
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| 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... |
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| Companhia Siderúrgica Nacional Companhia Siderúrgica Nacional Companhia Siderúrgica Nacional is the second major steel-maker company in Brazil. Its main plant is located in the city of Volta Redonda, in the state of Rio de Janeiro... (Brazil) |
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Built by MLW, gauge; to RFFSA RFFSA The Rede Ferroviária Federal, Sociedade Anônima was the state-owned national railway company of Brazil. It was created in 1957, and dissolved between 1999–2007.-Constituent Railways:... :pt:ALCo RSD-12 |
| Total | 171 |