by KEN PATRICK
sir ray; thanks for the post. a volume-based bulk system that maximizes both rail & truck weights and uses a gravity restraint system on both trailer and flatcar gave us the luxury of using the total railcar floor, i.e. 21' . there was no need to conform to 20' since our 5 sided container was bulk materials only and didn't use the iso restraints. the container simply sat in a pocket on both railcar and chassis. the flatcar solid deck gave us a friction benefit since most of the bottom rested on the deck. the container was used for msw, ash, sludge,sludge cake, c&d and hudson river dredge spoils( about 80% water pumped from a barge into the containe). 21' effectively used the available car deck. i started with 85' flats and 20' .ken patrick