Brass Question

[NW Modeling List]

Pardon my ignorance, Mr. Jimmy, but what does that do exactly. If you don’t mind answering, I would appreciate it. I don’t know a lot about steam engines, but I’ve never heard of that.
Sent from my smart phone cuzz I’m just high tech like that, know what I mean?
WALLY 

> On Jan 9, 2025, at 05:41, NW Modeling List via NW-Modeling-List <nw-modeling-list at nwhs.org> wrote:
> 
> David, your model is missing a continuation of the throttle rod between the back of the sand dome and the equalizing lever on the boiler.  
> 
> The Y5s were to my knowledge the only Ys that used this particular throttle, so your supposition about the class of your model is correct. Not all Y5s used this throttle though. Later Ys (and As/Js) used an American front end throttle - it’s spotting feature is the large access plate behind the stack (and the throttle actuating lever just below it on the right side of the smokebox). 
> 
> Matt Goodman
> Columbus, Ohio
> 
> Sent from my mobile
> 
> On Jan 8, 2025, at 10:38 PM, NW Modeling List <nw-modeling-list at nwhs.org> wrote:
> 
> 
> It is a Bradford Front End Throttle.
> 
> Jimmy Lisle
> 
> 
> 
> Sent from my Verizon, Samsung Galaxy smartphone
> 
> 
> -------- Original message --------
> From: NW Modeling List <nw-modeling-list at nwhs.org>
> Date: 1/8/25 7:20 PM (GMT-05:00)
> To: NW Modeling List <nw-modeling-list at nwhs.org>
> Subject: Brass Question
> 
> Hi society,
> Does anyone know what this little thing in front of the smokestack is? This is supposedly a Y5.
> David Baker
> <1000005460.jpg>
> 
> 
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