| Union Pacific AC4400CW 6280 was on the Wabtec/GE test track in Justin, Texas with newly-modified Canadian Pacific AC4400CWM 8072. The CP unit was serial number 48831; weighing 412,000 pounds and the sticker had the original build date of September 1995. The 6280 had been built in June 1995 as Southern Pacific 231 and was at Wabtec/GE waiting to be upgraded into a C44ACM. |