The Progress Rail PR30C is a C-C diesel-electric locomotive rebuilt by

Progress Rail Progress Rail Services Corporation , a fully owned subsidiary of Caterpillar since 2006, is a supplier of railroad and transit system products and services headquartered in Albertville, Alabama. Founded as a recycling company in 1982, Progress R ...

. It is the result of a conversion to an existing

EMD SD40-2 The EMD SD40-2 is a C-C diesel-electric locomotive built by EMD from 1972 to 1989. The SD40-2 was introduced in January 1972 as part of EMD's '' Dash 2'' series, competing against the GE U30C and the ALCO Century 630. Although higher-horsep ...

-type locomotive. This involves replacing the existing

prime mover Prime mover may refer to: Philosophy *Unmoved mover, a concept in Aristotle's writings Engineering * Prime mover (engine), motor, a machine that converts various other forms of energy (chemical, electrical, fluid pressure/flow, etc) into energy ...

with an

EPA The Environmental Protection Agency (EPA) is an independent executive agency of the United States federal government tasked with environmental protection matters. President Richard Nixon proposed the establishment of EPA on July 9, 1970; it be ...

Tier-II-compliant

turbocharged In an internal combustion engine, a turbocharger (often called a turbo) is a forced induction device that is powered by the flow of exhaust gases. It uses this energy to compress the intake gas, forcing more air into the engine in order to pr ...

V16

Caterpillar Caterpillars ( ) are the larval stage of members of the order Lepidoptera (the insect order comprising butterflies and moths). As with most common names, the application of the word is arbitrary, since the larvae of sawflies (suborder Sy ...

3516. The prime mover is equipped with an additional exhaust treatment system, in a large box mounted at hood top level, in front of the radiator section. At least six SD40-2s are scheduled for this rebuild, of which five have been completed and entered revenue freight service as of July 2010. The first units were introduced into service by

Union Pacific The Union Pacific Railroad , legally Union Pacific Railroad Company and often called simply Union Pacific, is a freight-hauling railroad that operates 8,300 locomotives over routes in 23 U.S. states west of Chicago and New Orleans. Union Pac ...

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...

in January 2010. They have been assigned to mainline freight operations in the southern part of the state between

Long Beach Long Beach is a city in Los Angeles County, California. It is the 42nd-most populous city in the United States, with a population of 466,742 as of 2020. A charter city, Long Beach is the seventh-most populous city in California. Incorporat ...

and West Colton. An additional PR30C operates as a demonstrator for Progress Rail. This conversion alters the external appearance of the locomotive; in addition to the addition of the large exhaust treatment box, the radiator section is replaced with one similar in appearance to that of an

EMD SD70ACe The EMD SD70 is a series of diesel-electric locomotives produced by the US company Electro-Motive Diesel in response to the GE Dash 9-44CW. Production commenced in late 1992 and since then over 5,700 units have been produced; most of these are t ...

References

* '' Railfan & Railroad, December 2009, page 30''

External links

* {{Green Locos C-C locomotives Diesel-electric locomotives of the United States EPA Tier 2-compliant locomotives of the United States Rebuilt locomotives Standard gauge locomotives of the United States