Approaching Tabernacle Road, the mid-train units, #828 and #3055, both ES44AH locomotives are cut in behind the sixty-fifth car (the mid-train units will be farther back in the train, and the trains will be longer, when these trains are running on a regular schedule.

There are so many noteworthy components in this train. All of these GE locomotives have the "AH" designation in the locomotive models, and is a product of a technology co-developed by GE and CSX to increase locomotive tractive effort by instituting anti-wheel-slip control and by adding weight to the locomotive. There is nothing unusual about distributed power, (DP: The employment of remotely controlled, locomotives at other locations within a train - usually on the rear of the train). DP control communications is by transmitting and receiving data by radio signal. DP has not been widely used by CSX on the old L&N main line between Nashville and Birmingham.

North Holmes Gap is the north end of a ten mile double track section that is for Helper service over Holmes Gap. Routed by the Dispatcher, located in Nashville, to the #2 track, N-13 will stop when its last hopper car is to a distance that clears the Helper locomotive to move out of its pocket. The Helper will then couple to the rear of N-13, and after the lead engine of N-13 is given control of the brakes on the Helper, the assault on the Brindley Mountain grade can begin.