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'''ALCO's RSD-1''' was a [[diesel-electric locomotive]] of the [[road switcher]] type rated at 1000 [[horsepower]], that rode on three-axle [[bogie|trucks]], having an [[AAR wheel arrangement#C-C|C-C]] wheel arrangement.
'''ALCO's RSD-1''' was a [[diesel-electric locomotive]] of the [[road switcher]] type rated at 1000 [[horsepower]], that rode on three-axle [[bogie|trucks]], having an [[AAR wheel arrangement#C-C|C-C]] wheel arrangement.


Used in much the same manner as its four-axle counterpart, the [[ALCO RS-1]], though the six-motor design allowed better tractive effort at lower speeds.
Used in much the same manner as its four-axle counterpart, the [[ALCO RS-1]], though the [[traction motor|six-motor design]] allowed better tractive effort at lower speeds.


[[Image:RSD-1.jpg|thumb|ALCO RSD-1, as delivered to the US Army.]]
[[Image:RSD-1.jpg|thumb|ALCO RSD-1, as delivered to the US Army.]]

Revision as of 18:04, 2 April 2006

ALCO's RSD-1 was a diesel-electric locomotive of the road switcher type rated at 1000 horsepower, 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-1, though the six-motor design allowed better tractive effort at lower speeds.

ALCO RSD-1, as delivered to the US Army.

Most of the RSD-1's were exported to countries such as Iran and the Soviet Union during World War II, as part of the Allied war effort. Operated on the Trans-Iranian Railway, these locomotives kept the trains running, and helped to assure eventual victory over Nazi Germany in 1945. Subsequently, the Soviets kept many of the RSD-1's after the war, adopting the design to form the basis of their own line of diesel locomotives.