Builder Plate Conundrum - photo

NW Mailing List nw-mailing-list at nwhs.org
Tue Mar 1 10:58:41 EST 2022


Thanks for the correction, Jim. The additional riveting threw me.

Matt Goodman

> On Feb 28, 2022, at 12:20 PM, NW Mailing List <nw-mailing-list at nwhs.org> wrote:
> 
> Matt Goodman: The long smokeboxes were "as built."
> 
> Jim Nichols
> 
> On Monday, February 28, 2022, 05:12:52 AM CST, NW Mailing List via NW-Mailing-List <nw-mailing-list at nwhs.org> wrote:
> 
> 
> With the photos, now I’m curious about the smokebox extension, which all the images illustrate. 
> 
> I’m curious, was this a modification to improve front end performance (better drafting)? If so, how did the extension help? 
> 
> These old-timers smokeboxes were so much smaller front-to-rear than twenties and later locomotives. Setting aside superheater headers and feed water heaters, I would image the extra volume would provide some “spring” to the gas flow, perhaps evening out the draft?
> 
> Matt Goodman
> Columbus, Ohio, US  
> 
> > On Feb 27, 2022, at 4:41 PM, NW Mailing List <nw-mailing-list at nwhs.org <mailto:nw-mailing-list at nwhs.org>> wrote:
> > 
> > Jim, I had thought of that idea too. It's a good one.
> > 
> > i.e. when the G 2-8-0 #256 was converted to G2 #256 0-8-0T in 1920 - that they created a new ROA Shops plate reflecting the reuse of boiler No.47 (or just smokebox) off F #169 2-8-0 with the original frame and running gear off G #256. However, I had always assumed that a builder plate reflected BOTH the boiler's no. and boiler's built date. Maybe this plate is different/unique.
> > 
> > Here's the arrangement drawing for the standard Class G 0-8-0T switcher. This is NOT a G2. Note: No room for a dynamo between the headlight and stack.
> > 
> > https://www.nwhs.org/archivesdb/detail.php?ID=33110 <https://www.nwhs.org/archivesdb/detail.php?ID=33110>
> > 
> > 
> > 
> > Mike, Sorry about that. Here's the link to 'after' (i.e. the only loco in the G2 Class)
> > 
> > https://www.nwhs.org/archivesdb/detail.php?ID=72444 <https://www.nwhs.org/archivesdb/detail.php?ID=72444>
> > 
> > For 'before' just search Class F or G photos in database.
> > 
> > John Garner
> > 
> > 
> > 
> > 
> > Perhaps I missed it, but can someone attach pictures of the before and
> > after locomotives in question so this  discussion will be easier to follow?
> > 
> > Mike Rector
> > 
> > On Sun, Feb 27, 2022 at 8:17 AM NW Mailing List <nw-mailing-list at nwhs.org>
> > wrote:
> > 
> >> Maybe it is just me, but I don't see any difference in the length of the
> >> smokebox. The headlight just gets moved forward. However consider this: N&W
> >> seemed to relate shop numbers to boilers rather than running gear. So we
> >> could be seeing a reboiler, and the "new" Roanoke Shops plate gives the
> >> number for the boiler and the date for the running gear. Makes as much
> >> sense as any other idea that has been proposed.
> >> Jim Nichols
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> 
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