Re: NP 1937 AAR rebuild dates
Frank, Matt may be right, but I think you can probably get a ballparktoggle quoted messageShow quoted text
answer this way: very few cars in his series were rebuilt in 1955;
nearly all were rebuilt by 1970. If you assume there was a roughly
linear shop rotation of these cars during that interval, you get 7
percent per year rebuilt, or a crude guess on the order of 35 percent
with rebuilt side sills by 1960. Judging from looking at a lot of
photos, I think this isn't far from the mark.
Matt Herson might have more specific data, I know he has looked into
this. A significant proportion of cars in this series were rebuilt
before the NP's adoption of the post-steam-era billboard/jumbo monad
It's beyond this group's era, but relevant to your quetion that in
years of looking I have located only one or two photographs of NP 40ft
AAR steel boxcars retaining their original tab sills by 1969-70, out
of hundreds of cars examined.
In STMFC@yahoogroups.com, "Matt Sugerman" <camas74@...> wrote: