ALCO RSD-4
Encyclopedia
The ALCO RSD-4 was a diesel-electric locomotive of the road switcher
type rated at 1600 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-3
, though the six-motor design allowed better tractive effort at lower speeds. Due to the inadequate capacity of the main generator, this model was later superseded in production by the ALCO RSD-5
(formerly known as the Puget Sound & Snoqualmie Valley Railway) in Snoqualmie, Washington
, wearing a coat of bright orange paint.
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 1600 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-3
ALCO RS-3
The ALCO RS-3 is a 1,600 hp , B-B road switcher railroad locomotive. It was manufactured by American Locomotive Company and Montreal Locomotive Works from May 1950 to August 1956, and 1,418 were produced — 1,265 for American railroads, 98 for Canadian railroads, 48 for Brazilian and 7...
, though the six-motor design allowed better tractive effort at lower speeds. Due to the inadequate capacity of the main generator, this model was later superseded in production by the ALCO RSD-5
ALCO RSD-5
The ALCO RSD-5 was a diesel-electric locomotive of the road switcher type rated at , that rode on a pair of three-axle trucks, having a C-C wheel arrangement....
Original owners
Railroad | Quantity | Road Numbers | Notes |
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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... |
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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... |
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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... |
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Kennecott Copper Corporation | Preserved | ||
Utah Railway Utah Railway The Utah Railway is a class III railroad operating in Utah and Colorado, and owned by Genesee & Wyoming Inc.-History:The Utah Railway Company was incorporated on January 24, 1912, with the name of Utah Coal Railway, shortened to Utah Railway in May of the same year... |
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Total | 36 | ||
Preserved units
The only ALCO RSD-4 that has survived is Kennecott Copper Corporation #201. As of 2007, it resides in fully restored condition at the Northwest Railway MuseumNorthwest Railway Museum
The Northwest Railway Museum is a railroad museum in Snoqualmie, King County, Washington.-Snoqualmie Depot:The museum owns the Snoqualmie Depot built in 1890, of railroad right-of-way, and of the former Northern Pacific Railway North Bend branch...
(formerly known as the Puget Sound & Snoqualmie Valley Railway) in Snoqualmie, Washington
Snoqualmie, Washington
Snoqualmie is a city next to Snoqualmie Falls in King County, Washington. The city is home to the Northwest Railway Museum. The population was of 10,670 at the 2010 census...
, wearing a coat of bright orange paint.