| New Rio Tinto Mining Co. ES44ACi 9144 was being worked out on the General Electric test track with the 9145 and 9142 about three miles north of GE’s Fort Worth Plant. The 9144 was part of an order for 20 units 9129-9148 for service in Western Australia. This unit was GE serial number 64734, built in October 2018 with a weight of 432,000 pounds. |