This phase is where Union Pacific 7470 - 7529 and 7925 - 8051 was built between April 2011 - September 2012. The ES44AC (Evolution Series, 4,400 hp, AC traction) replaced the AC4400CW model in the General Electric catalogue. These locomotives have been ordered by every Class I railroad in North America: Union Pacific Railroad (who refers to these locomotives as the C45ACCTE), BNSF Railway, CSX Transportation, Norfolk Southern Railway, Ferromex, CPKC Railway, and Canadian National Railway.
Description is from Wikipedia Credit to all, I worked hard on this no reporting. No offense. Press space or tap to change costumes