The locations are pretty apparent from the photos and drawings like the R-40-24. What I'd like to know is does the piping go beneath the underframes or through it? Was it the same for Bettendorf & built up underframes?
Underneath on Bettendorfs, not through. Through, not under, on built-up underframes, including express reefers and the 52-foot cars with deeper center sills. Shaken, not stirred. Defense, not offense.
Tony Thompson Editor, Signature Press, Berkeley, CA