odd photo

[NW Mailing List]

I meant to add

A few Z1a's were sold to the Tennesee Central, googled TC, on the hunch 
maybe one was saved, but alas, they ended steam about 1952 to diesels, I 
don't think they survived.

-Lynn-
On 5/18/2015 8:23 AM, nw-mailing-list-request at nwhs.org wrote:
> Subject:
> Re: odd photo
> From:
> NW Mailing List <nw-mailing-list at nwhs.org>
> Date:
> 5/17/2015 8:58 AM
>
> To:
> nw-mailing-list at nwhs.org
>
>
> Lynn:
> Please re-read Prince's book.  The Z1s, a and b, (not "L") were ALL 
> compound engines.  The Z1 and Z1a were built with slide-valve low 
> pressure cylinders.  Those rebuilt to Z1b got piston valve low 
> pressure cylinders; there may have been other improvements, too, but 
> others more knowledgeable about such details can fill that in.
> There was one (1) fully simple Z, class Z2, No. 1399.
> This link http://www.steamlocomotive.com/2-6-6-2/?page=nw is helpful.
> Dave Phelps

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