and he notes - The shape of the rib is correct. An extruded triangular cross section would not offer the strength as would a round cross section. The cars had no seams and the ribs acted as load bearing supports, strengthening the car's structural integrity.
A good drawing and a clear photo appears in RMC's "Rolling Stock Plan Book" [ca 1971]. also there are photos on the site: http://www.northeast.railfan.net/bo3.html Here is a photo of a boxcar from that site showing the shape of the ribs: http://www.northeast.railfan.net/images/bo375602.jpg And a caboose which clearly shows the construction, which is identical to the boxcar: http://www.northeast.railfan.net/images/boC2414.jpg Because the ribs on the caboose have a narrower cross section, they would appear to have sharp edges but they are really round. This photo shows the ribs a little more clearly: http://www.northeast.railfan.net/images/tr_bo15B.jpg Triangular shaped ribs may have been a concession to a kit model but rounded ribs were used on the prototypes. A wagon top boxcar (No. 385897) is preserved at the B&O museum in Baltimore. I've seen one somewhere else but can't recall where. Raleigh At 12:25 PM 1/7/2005, Ted Larson wrote: >--- [email protected] wrote:> The term I've heard is a "Wagon Top >Boxcar", usually identified with > > B&O's > > versions. There is a neat site with one under construction for a live > > steam > > operation. It not S Gauge but it does show the shape of the ribs as > > well as other construction details. > >Is this the feature we're discussing? >If so, does this photo accurately represent the prototype? >http://www.trainweb.org/jlsrr/livesteam/wagon-top-boxcar/wagon-top-1/full-pictures/wagontop10-web.jpg > >IF so, then it is not clear to me how a triangular cross section is >good to use; using wire to get the outer radius, then fill in the gap >between the wire and the sheet metal sides seems a rational approach. >Anybody got access to the prototype to verify what the real shape is? > > >===== >Ted Larson > > > >__________________________________ >Do you Yahoo!? >Take Yahoo! Mail with you! Get it on your mobile phone. >http://mobile.yahoo.com/maildemo > > >The poll results are in....... To REPLY to the list, use REPLY ALL, to >reply to the sender, use REPLY. I do NOT know if this works on all e-mail >software, but it works on some of the most common ones. > >Change your membership, change your message settings, use our CALENDAR, >view shared files or photos, view the list archives, GO TO >http://groups.yahoo.com/group/S-Scale/ >Yahoo! Groups Links > > > > The poll results are in....... To REPLY to the list, use REPLY ALL, to reply to the sender, use REPLY. I do NOT know if this works on all e-mail software, but it works on some of the most common ones. Change your membership, change your message settings, use our CALENDAR, view shared files or photos, view the list archives, GO TO http://groups.yahoo.com/group/S-Scale/ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/S-Scale/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
