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GE U34CH
The U34CH is a passenger diesel locomotive built by General Electric between 1970 and 1973. In total, 33 U34CH units were built; 32 were built for the New Jersey Department of Transportation and operated by the Erie Lackawanna Railway and, later, Conrail, with the last unit coming as a later rebuild of a GE U30C for the New York MTA.
==Erie Lackawanna, 1970–76==
The 32 initial locomotives numbered 3351–3382, were built by GE for the New Jersey Department of Transportation (NJ DOT) and operated by the Erie Lackawanna Railway with new Pullman Standard push-pull coaches. The units were intended to replace locomotives in suburban commuter service out of Hoboken, New Jersey. The U34CH preceded the GE U36C in GE's catalog. The U34CH was the first GE locomotive to use steel crowned pistons to develop and was the first commuter locomotive built with shaft driven HEP–that is, a HEP alternator driven by the locomotive prime mover rather than by a separate diesel. To provide HEP at the proper AC frequency the FDL-16 prime mover ran at a constant 900 RPM, so traction horsepower was 3430 minus whatever was going into HEP. By contrast, when not providing HEP, the FDL-16 could produce 3600 traction horsepower at its usual 1050 RPM. To show their NJ DOT ownership, the units were painted in a dark blue and silver paint scheme with NJ DOT logo and were often called "Bluebirds" by rail enthusiasts. The U34CHs on the weekends were sometimes used in Erie Lackawanna freight service, often being on freight duty from Saturday to Sunday and returning to commuter service Monday morning.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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