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Truss rods per se were never "outlawed" but first, wooden underframes were banned and then wooden underframes with steel center sills were banned. Truss rods were used with both types of underframes but some all steel underframe designs also used them, mostly on passenger cars, but on some freight cars as well. On Monday, December 23, 2013 12:36 PM, Rupert & Maureen <gamlenz@ihug.co.nz> wrote: Bill
There is a list in the Steam Freight Car Group files showing AAR interchange restrictions. There isn’t a listing for truss rods – the closest is wood draft sills banned from interchange in 1925. Rupert Gamlen Auckland NZ From:
CBQ@yahoogroups.com [mailto:CBQ@yahoogroups.com] On Behalf Of William Barber
Sent: Tuesday, 24 December 2013 4:50 a.m. To: CBQ@yahoogroups.com Subject: [CBQ] Re: 1956 Empty stock cars eastbound John, The lead stock car clearly has truss rods. Weren't truss rod equipped
cars outlawed for interchange service at some point in time?
Bill Barber
Gravois Mills, MO
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