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This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources. Find sources: "Railpower RP20CD" – news · newspapers · books · scholar · JSTOR (August 2016)

The RP20CD is a diesel-electric road switcher locomotive built by Railpower Technologies. It is a "genset" locomotive, having three engine-generator sets.

The engines are computer controlled, with the computer stopping and starting engines on a rotating basis, as required to produce the horsepower needed at any given moment.

It has six-wheel (three-axle) trucks, rather than the usual four-wheel (two-axle) trucks commonly found on smaller, lighter, switcher locomotives. RP20CDs are rebuilt from older locomotives and can be upgraded to 2,700 horsepower (2.01 MW) by adding a fourth generator.

References

1. "Up to 60% Reduction In Fuel Cost". RJ Corman Railpower Locomotives. Archived from the original on September 5, 2013.
2. "Switcher, 4 & 6 Axle Locomotives". RJ Corman Railpower Locomotives. Archived from the original on September 5, 2013.

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