Thanks Tony - The Jan '43 ORER lacks the TPI, so it must have been added somewhere in that 18 month window.
I do have Al W's Jan '45 ORER CD with the TPI class - so that should answer my question. I notice Ethyl went from 246 cars to 342 cars in two years - most of them 6k 105A300's.
Sorry about the ARA/AAR - I am working a current AAR initiative, so in trying to make sure I don't use ARA in a meeting, I try to use ARA for modeling and AAR for work, especially since a lot of WWII rolling stock was based on ARA designs.
---In STMFC@..., <tony@...> wrote :
Dave Evans wrote:
This may be true, but in my July 1944 ORER there definitely IS a listing for TP tank cars. And by the way, after 1934, the ARA had become the AAR, so we are talking about AAR car classes.