HO Scale U50 Locomotive, SP #9951

SP FEATURES: SP Style “Big Hole” Emergency light (Flash function in DCC only) Classification lights (Function in DCC only) Working Truck lights Number board lights MU hoses Separate see-through air intake grills Due to the increase of better highways in the 1950's the trucking industry was beginning to siphon off time sensitive traffic from the railroads. Consequently, in the late 1950's the Southern Pacific and the Union Pacific railroads were seeking ways to increase the horsepower of their locomotives to help improve train speeds without having to add more locomotives to their trains. The SP was striving to improve transit times on their Sunset Route freights and was utilizing large groups of lower horsepower locomotives to do so. One method to achieve these goals was to mount two complete prime movers on one chassis. UP asked the 3 major locomotive builders at that time to submit proposals using this conce

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