South bound NS train 052 which was combined with the CAT train 055 is seen arriving in Macon, Ga. while on the approach to Macon Jct with the EMDX Tier lll demonstrator 1201 leading.

South bound NS train 052 which was combined with the CAT train 055 is seen passing through Arkwright, Ga. with the EMDX Tier lll demonstrator 1201 leading.

South bound NS train 052 which was combined with the CAT train 055 is seen passing through Dames Ferry with the EMDX Tier lll demonstrator 1201 leading.

EMDX 1201 pulls high and wide train 055 loaded with Caterpillar equipment through Vanarsdale on the Louisville District.

EMDX 1201, painted in a Caterpillar-inspired demo scheme, led the weekly Cat-train along NS from Illinois to the Port in Savannah, GA. The train is seen here crossing the Tennessee River at "Tenb... (more)

EMDX 1201, painted in a Caterpillar-inspired demo scheme, led the weekly Cat-train along NS from Illinois to the Port in Savannah, GA. The train is seen here emerging from Tunnel 24, rolling down... (more)

NS 055 takes on fuel at Danville, KY before continuing south along the Second District of the CNO&TP. Both locomotives are being fueled at the same time in an effort to save time but it would not... (more)

Wearing a Caterpillar inspired paint scheme, EMDX 1201 pulls a high and wide train load of Caterpillar equipment along Norfolk Southern’s Louisville District.

Sporting special "CAT colors", EMDX 1201 leads the weekly Caterpillar train at Huntingburg, IN.

EMDX SD70ACe's 1202, 1205, and 1204 lead Alabama & Tennessee River Railroad train Z390 under highway 431 at Wellington just after sunset, enroute to Birmingham.

EMDX 1202 is working the ATN during a testing phase.

EMDX 1202 is working the ATN during a testing phase.

Caterpillar unveiled SD70ACe 1201 at the Minexpo trade show in Las Vegas today, featuring a new Cat-inspired demonstrator scheme. During its trip west, the unit was transported under a blue tarp.

The sun peaks out for a moment to shine on one of four SD60MAC's produced that were tested by the BN in the 90's. This one is now used for testing purposes at the EMD LaGrange plant.