Class A sheathed smokebox.

[NW Mailing List]

1218 is 

Negative - NG100670

https://www.nwhs.org/archivesdb/detail.php?ID=160600

1239 is 

Negative - NG101726

https://www.nwhs.org/archivesdb/detail.php?ID=214773

Best
Ken


> On Feb 5, 2023, at 3:56 AM, NW Mailing List <nw-mailing-list at nwhs.org> wrote:
> 
> Ken,
> 
>  
> 
> Can you please advise me of the photo numbers so that I can purchase prints of them?  Thanks!
> 
>  
> 
> Vic Chudoba
> 
>  
> 
> From: NW-Mailing-List <nw-mailing-list-bounces at nwhs.org> On Behalf Of NW Mailing List
> Sent: Sunday, February 5, 2023 9:25 AM
> To: NW Mailing List <nw-mailing-list at nwhs.org>
> Subject: Re: Class A sheathed smokebox.
> 
>  
> 
> Vic
> 
>  
> 
> Here is a quick example of what we are talking about.
> 
>  
> 
> Two views from our Archives. Top is 1218 in regular service, bottom is 1239 in regular service. Notice the arrow pointing to the end of the jacketing on 1239.
> 
> <image003.jpg>
>  
> 
> The thing I believe you are seeing is something N&W to my knowledge, never head, a “Coffin” feedwater heater, show on this image I found on the internet.
> 
> <image002.jpg>
> Best
> 
> Ken Miller
> 
> 
> 
> On Feb 4, 2023, at 6:08 PM, NW Mailing List <nw-mailing-list at nwhs.org> wrote:
> 
> Larry,
> 
> Thanks for the explanation.  I can understand the concept.  I have seen a few photos of steam locomotives with a “U” shaped extension over the smokebox.  Is this what it would look like?  Are there any photos of the “A” or “Y” with this feature?
> 
>  
> 
> Vic Chudoba
> 
>  
> 
> From: NW-Mailing-List <nw-mailing-list-bounces at nwhs.org> On Behalf Of NW Mailing List
> Sent: Sunday, February 5, 2023 5:23 AM
> To: 'NW Mailing List' <nw-mailing-list at nwhs.org>
> Subject: RE: Class A sheathed smokebox.
> 
>  
> 
> Viv
> 
>     It’s just an extension of the lagging and boiler jacket out and over the smokebox . I not sure what the N&W reasoning was for sure . Quit a few of the Y class got
> 
> The same treatment , I was on the C&O 1309 crew we insulated the smokebox  that never was when in service. It helps with expansion and contraction  of the front tube sheet retaining heat so you get slower cooling . I am sure it helped on the feed water system  also on the” A” .  I am no expert but all the heat you can retained in a boiler is a good thing
> 
>  
> 
>  
> 
> Larry Evans
> 
>      
> 
>  
> 
> From: NW-Mailing-List [mailto:nw-mailing-list-bounces at nwhs.org] On Behalf Of NW Mailing List
> Sent: Saturday, February 04, 2023 2:36 AM
> To: 'NW Mailing List' <nw-mailing-list at nwhs.org>
> Subject: RE: Class A sheathed smokebox.
> 
>  
> 
> Please forgive my ignorance and teach me what a “sheathed” smokebox is and its purpose, as well as how to know from a photo if it was installed.  Thank you!
> 
>  
> 
> Vic Chudoba
> 
>  
> 
> From: NW-Mailing-List <nw-mailing-list-bounces at nwhs.org> On Behalf Of NW Mailing List
> Sent: Friday, February 3, 2023 12:01 AM
> To: 'NW Mailing List' <nw-mailing-list at nwhs.org>
> Subject: RE: Class A sheathed smokebox.
> 
>  
> 
> Jimmy
> 
> Best I can do  1213,1214,1217,1218
> 
>  
> 
> Larry Evans
> 
>  
> 
> From: NW-Mailing-List [mailto:nw-mailing-list-bounces at nwhs.org] On Behalf Of NW Mailing List
> Sent: Wednesday, February 01, 2023 2:51 PM
> To: NW Mailing List <nw-mailing-list at nwhs.org>
> Subject: Class A sheathed smokebox.
> 
>  
> 
> Does anyone know how many/what numbered Class A locos received the sheathed smokebox?
> 
>  
> 
> Jimmy Lisle
> 
>  
> 
>  
> 
>  
> 
> Sent from my Verizon, Samsung Galaxy smartphone
> 
>  
> 
>  
> 
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>  
> 
> ________________________________________
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