A pair of EMD SD70ACe-T4 demos painted in BNSF colors race west through the semaphore signals at Robinson, New Mexico along BNSF's Raton Subdivision, on August 8, 2018.

EMDX's SD70ACeP4-T4 demonstrator units are down to 25 mph as they navigate through a slow order at Isanti, Minnesota.

First light on October 15, 2016, finds the EMDX demonstrator units racing through tiny Braham, Minnesota, heading for Minneapolis.

EMDX 1603 slows to a stop at Andover and will wait for the track ahead to clear before it heads into Minneapolis. The EMDX P4-T4 demonstrators have been assigned to the Northtown (Minneapolis) to... (more)

The crew aboard EMDX demonstrator 1603 is cutting off a portion of their train in the receiving yard after arriving in Northtown. The two SD70ACeP4-T4 locomotives that wear BNSF paint have been a... (more)