Southern Pacific 9010 - Purpose and Service As A Locomotive

Purpose and Service As A Locomotive

SP 9010 was delivered as part of the second order of ML 4000 C'C' units in the Spring of 1964, road numbers 9003-9017. (ML: Mechanical Locomotive; 4000: net horsepower; C'C': two powered bogies/trucks with three connected axles each.) The first order of six locomotives -- three for SP and three for the Denver and Rio Grande Western) -- were called "Prototypes" by KM, but were popularly known in the U.S. as "cab units" due to their fully enclosed car bodies, similar to the EMD F-unit. SP 9010 was a member of the second production order of fifteen locomotives. These were called "Series" units by KM, but were popular known as "hood units" after the more modern narrow-hood carbody with external walkways. SP's stated motives for ordering the German-manufactured locomotives were a desire for more power per axle, better adhesion to the rails, freedom from electrical malfunctions, and fewer locomotives in 'consist' than the available American diesel-electric locomotives of the time. SP owned a total of 21 ML 4000 C'C' locomotives, and a total of 24 of the diesel-hydraulic type. ML 4000s were originally used in freight service on SP's famous Donner Pass line over California's Sierra Nevada, as they were originally intended to replace the EMD F7, and had a special track set up at the Roseville locomotive shops specifically for servicing the locomotives, with German mechanics and supervisors from K-M taking U.S. residence. However, the locomotives were found unsuitable in mountain service after extensive testing and relegated to service in the flat territory of the San Joaquin Valley, often running in tandem with EMD F7s or EMD GP9s.

Read more about this topic:  Southern Pacific 9010

Famous quotes containing the words purpose, service and/or locomotive:

    To every thing there is a season, and a time to every purpose under the heaven:
    A time to be born, and a time to die; a time to plant, and a time to pluck up that which is planted;
    Bible: Hebrew Ecclesiastes (l. III, 1–2)

    Service ... is love in action, love “made flesh”; service is the body, the incarnation of love. Love is the impetus, service the act, and creativity the result with many by-products.
    Sarah Patton Boyle, U.S. civil rights activist and author. The Desegregated Heart, part 3, ch. 3 (1962)

    I walked on the banks of the tincan banana dock and sat down under the huge shade of a Southern Pacific locomotive to look at the sunset over the box house hills and cry.
    Allen Ginsberg (b. 1926)