First of all, Rich M., thanks for posting the information on your great JB Hunt trailers. I had a feeling they were custom work. Sorry, I've been unable to keep up with the Forum much lately to acknowledge your reply sooner.
Now, for those interested in the Norfolk Southern intermodal yard at (former Fort) Devens, MA here's a consist update. There's an intersection just east of the Ayer station and wye, whose south end leads to the NS intermodal yard, then eventually to Worcester (CSX?). The west track enventually ends up in New York (Pan Southern??) The double track in Ayer handles both the Boston to Fitchburg MBTA communter rail and the Stony Brook short line branch that goes up to Maine and is Pan Am's now. Twice at this Groton-Harvard Road intersection, I've seen intermodal trains with at least 100+ cars head east on the lower track then stop, and back up. Although there are one or two small sidings on the west side of the track where they occasionally park a handful of tankers or cars holding plastic pellets, it was clear something else as going on. It finally hit me that the train was likely backing down the wye. It was dark so I couldn't see the end of the train nor was I near the wye, but where the consist had stopped in front of me, all the remaining cars on the wye side were empty flat cars. i could imagine them heading down to the intermodal yard to get loaded up. Here's the motive power and consist of the one I saw 24 January 2015, about 8:00 PM? The other consist was more varied with lots of large, long well cars and probably Dashes but I can't find my notes.
Motive power:
<Engine 1 NS 1146 EMD SD70ACe built 2014 (leading)
<Engine 2 NS 8769 GE Dash 9-40C built 1995
<Engine 3 NS 1079 EMD SD70ACe built 2013
Representative consist:
Hub Group, EmP, half height JB Hunt intermodal (never saw these before), regular size JB Hunt intermodals, TTX, DTTX, a bunch of empty flat cars at the end that was heading back west/south to the wye. Too dark to read, probably TTX.
I was happy to see the EMD SD70ACes because that's what I've got (MTH) and it's the first I've seen something that large at this crossing and on this little line.
Tomlinson Run RR