Diesel-electric locomotive / From Wikipedia, the free encyclopedia
The GE AC4400CW, sometimes referred as "AC44CW" is a 4,400 horsepower (3,300kW)diesel-electric locomotive that was built by GE Transportation Systems between 1993 and 2004. It is like the Dash 9-44CW, but features AC traction motors instead of DC, with a separate inverter per motor. In appearance, the AC4400CW is somewhat similar to GE's more powerful locomotive, the AC6000CW.
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GE AC4400CW
A conductor rides on a pair of CSX AC4400CW locomotives in Worcester, MA.
2,834 units were built for North American railroads over an 11-year production. In 2005, all Class I freight railroads except Norfolk Southern and Canadian National owned at least one AC4400CW. Norfolk Southern ordered the very similar C40-9Ws, although NS would later acquire 36 former CEFX AC4400CWs in August 2023. As a result of more stringent emissions requirements that came into effect on January of that year, GE no longer offers the AC4400CW, replacing it with the ES44AC.
CP AC4400CW #9560 and CP SD40-2 #6029 head west towards the NS Elkhart Yard, 2009
Kansas City Southern AC4400CW no. 4575 with self-steering trucks in October 2014
UP 5739 (AC4400CW), in Roseville, CA
UP 6521 with a trailing ex Southern Pacific AC4400CW