You are correct. I was looking at a 1937 CBC and they (AAR) were making historical references to post-USRA structural problems. You are also correct that I wasn't able to find a standard double-sheathed auto-box that matched the C&O 82000 and HV 34000 series 40' 6" auto boxes blt in 1924-25.


-------------- Original message --------------
From: Tony Thompson <thompsonmarytony@...>
Thanks for the insite. By 1928 the standard AAR auto-boxes had
changed the clearance envelop and auto-boxes were starting to get
bigger . . . but the smaller ones would still be around.
You mean, of course, the ARA, since the AAR came along in 1934;
and there really wasn't a "standard" ARA automobile car that I know of.
The AAR adopted such a standard in 1942.

Tony Thompson Editor, Signature Press, Berkeley, CA
2906 Forest Ave., Berkeley, CA 94705
(510) 540-6538; fax, (510) 540-1937; e-mail, thompson@...
Publishers of books on railroad history

Join to automatically receive all group messages.