Extended Stack on Z

[NW Mailing List]

Spark arrester. -Ed Burnett, Lynchburg, Virginia

>     On 12/29/2022 4:42 PM NW Mailing List via NW-Mailing-List <nw-mailing-list at nwhs.org> wrote:
> 
> 
>     List, 
> 
>     In a scene in “Operation Fast Freight” (on YouTube, and also available remastered for rent on Vimeo - https://vimeo.com/ondemand/filmsofthenandw), there is a short sequence of a Z switching what appears to be a chemical or petroleum plant. The locomotive has an extended stack. Was this common, and what was it’s purpose?  Better draft while switching? Better visibility? See the attached photo.
> 
>     Matt Goodman
>     Columbus, Ohio, US
> 
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