--- In STMFC@yahoogroups.com, Malcolm Laughlin <mlaughlinnyc@...>
question. The more relevant questions are:
do ? -- requiring steel center sill.
increase to the extent that the additional support provided by truss
rods became irrelevant.
I know GN had rebuilt reefers with steel underframes which still
retained trussrods. Was it done that way because it was cheaper than
rebuilding with stronger steel underframes (and it was allowed) or
was there another reason?