Class A sheathed smokebox.

Sat Feb 4 15:22:49 EST 2023

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 < <mailto:nw-mailing-list-bounces at nwhs.org> 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' < <mailto:nw-mailing-list at nwhs.org> 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> 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 < <mailto:nw-mailing-list at nwhs.org> 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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