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The GE P30CH, nicknamed "Pooch" by rail-fans and engineers, were 3000hp six axle locomotives with a C-C wheel arrangement. They were the first locomotives owned by Amtrak to possess head end power, provided by two Detroit Diesel 2 stroke generator sets made by their competitor GM. The engines in these Gen Sets were not unlike scaled down EMD 645s. Their prime mover consisted of the GE 7FDL-16 and the transmission consisted of a GE GTA11 and the final drive was provided by 6 GE 752 traction motors geared to the axles with a 75:28 gearing.
GE P30CH Pooch

A typical Amtrak P30CH retaining its original "Phase II" scheme from the railroad (later units were painted with the "Phase III" scheme, which was first applied to their F40PH units).

Unfortunately they proved to be far less reliable than their freight cousin the U30C and as a result all were scrapped in 1992. The unreliability is suspected to have stemmed from the Head End Power system with it's 2 gen sets.

CareerEdit

P30CH Switching

A P30CH switching fairly-new Phase II-painted Superliner coaches in Chicago. Note the soot on the roof from the two cycle gen sets in the rear with comparatively less soot surrounding the main exhaust.

When Amtrak took over passenger trains across the USA in 1971, it sought to replace most of its older E- and F-units it inherited. While the SDP40F was chosen as the primary long-distance unit, Amtrak also agreed to purchase 25 P30CH units from GE.

They were used by amtrak between 1975 and 1992 and during this period several were leased to Caltrans and the Southern Pacific.

After over a decade of intelorable unreliability, all were scrapped in 1992 and their final duties consisted of the "Sunset Limited" and "Auto Train" services.


SourcesEdit

http://www.trainorders.com/discussion/read.php?11,1292937

http://dieselshop.us/DataP30.HTML

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