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History: Introduced in 1950, the all-purpose, 1600-HSP RS-3 diesel locomotive had the stamina and strength for freight and passenger service yet was agile enough for yard work. With its rugged, dependable design, it's no wonder that many of these versatile RS-3 locomotives are still working today on short lines, tourist lines, and hauling freight. The ALCO RS-3 is a 1,600 hp (1.2 MW), B-B road switcher diesel-electric locomotive. It was manufactured by American Locomotive Company (ALCO) and Montreal Locomotive Works (MLW) 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 for Mexican railroads. It has a single, 12 cylinder, model 244 engine.
Well over 1,300 RS-3 road-switcher locomotives were built by ALCO between 1950 and 1956. It can be considered one of the most successful four-axle diesel road-switchers ever produced by the builder. These 1,600hp locomotives were powered by an ALCO 244 V-12 engine which was complimented by rugged GE electrical components. The RS-3 was truly a versatile locomotive. It could be found in virtually every type of service from passenger and commuter runs to heavy-haul and local freight assignments. Original owners of the RS-3 tended to be in the eastern and central regions of the US (with heavier concentrations in the northeast and southeast).
During this same time-period, ALCO offered a six-axle road-switcher which was more commonly found in the west. The RSD-4/5 was externally very similar to the RS-3, having six-axle trucks as an obvious spotting feature. They produced the same 1,600hp as an RS-3, but offered increased tractive effort due to the use of a larger generator. Many RSD-4/5s were assigned to operate in mountainous territory (with varying degrees of success) on the Southern Pacific, Santa Fe and the Utah Railway.
The American Locomotive Automobile Company subsidiary designed and manufactured automobiles under the Alco brand from 1905-1913 and produced nuclear energy from 1954-1962. The company changed its name to Alco Products, Incorporated in 1955. In 1964 the Worthington Corporation acquired the company. The company ceased trading in 1969.
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Item created by: gdm on 2018-02-12 17:05:16. Last edited by gdm on 2018-03-15 11:37:11
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