The AC6000CW is a diesel electric locomotive built by GE Transportation. The train sets consisted of white coloured locomotive and wagons. The L-2350 uses a diesel-electric propulsion system similar to that used in a locomotive. Traditionally, trains are pulled using a locomotive. Water is an essential element in the operation of a steam locomotive. A third locomotive, the British Rail GT3, was constructed in 1961. The first electric locomotive built in 1837 was a battery locomotive. Thus it was also the earliest battery electric locomotive. The official Pennsylvania State Electric Locomotive is the GG-1 #4859. Almost any part of the locomotive, including boilers, was replaced or upgraded. The first unstreamlined locomotive to be retrofitted was No. South Locomotive and Rolling Stock Industry Corp.. This is destructive to both the locomotive and the roadbed. They are not articulated relative to other parts of the locomotive. Notable examples saved include the first-built locomotive, no.