PRR I1sa build thread

[mike_lawyer]

John -

Let me know if you need any additional GHQ I1 shells - I have one shell that I completed for an I1, complete with dome re-setting, but I have now moved to HO scale.  I'd be more than happy to sell it to you.  I also have an extra I1 Kato Mikado frame, complete with a 5th driver slot.  Email me if interested.

[Lemosteam]

Nearly 8 years have passed on this build since the last post.   

Recent developments have led me to design a Worthington Feedwater heater shown below:





Soon I will be developing air tanks to fit the locomotive pilot, but there is much work to do on the boiler itself, walkway updates, and dome moves are still required.

[mike_lawyer]

Very cool!  Are you going to resume your I1 build?

[peteski]

Excellent!

[Chris333]

So the heater on these was under the boiler (or at least the lower half)?

Damnit I lost my own post.

Worthington themselves calls part of the pump the heater??
https://www.jernbanearkivalier.dk/damploko-3/worthington-loc-boiler-feed-pump-1922.pdf
I always thought the heater was up on top in front of the stack:
https://www.oscalekings.org/gary_shrader/atsf_5001/images/gs07_stack-fwh-13_740.jpg
Guess I'm confusing the "heater" with the coils.

An Elesco heater looks like a tank and their pumps are smaller and could easily be mistaken for an air pump.

How an Elesco works:
https://www.flickr.com/photos/gmpullman/49585704778/

https://i23.photobucket.com/albums/b399/doctorwayne/CNR%20BEEG%20BOY/CopyofBeegBoy40.jpg
https://i23.photobucket.com/albums/b399/doctorwayne/CNR%20BEEG%20BOY/CopyofBeegBoy62.jpg

Anyways PRR must put the "heater" under the boiler instead of on top.

[TVRR]

I had long wondered what happened with this build, great to see it rise once again.

[mmagliaro]

So the heater on these was under the boiler (or at least the lower half)?

Damnit I lost my own post.

Worthington themselves calls part of the pump the heater??
https://www.jernbanearkivalier.dk/damploko-3/worthington-loc-boiler-feed-pump-1922.pdf
I always thought the heater was up on top in front of the stack:
https://www.oscalekings.org/gary_shrader/atsf_5001/images/gs07_stack-fwh-13_740.jpg
Guess I'm confusing the "heater" with the coils.

An Elesco heater looks like a tank and their pumps are smaller and could easily be mistaken for an air pump.

How an Elesco works:
https://www.flickr.com/photos/gmpullman/49585704778/

https://i23.photobucket.com/albums/b399/doctorwayne/CNR%20BEEG%20BOY/CopyofBeegBoy40.jpg
https://i23.photobucket.com/albums/b399/doctorwayne/CNR%20BEEG%20BOY/CopyofBeegBoy62.jpg

Anyways PRR must put the "heater" under the boiler instead of on top.

Chris,
According to my ICS book on this, there is no "tank" in a Worthington Feedwater Heater.  That whole assembly you
see on the side of the engine is all there is.  There's nothing behind it or inside or under the boiler.
Cold water comes into that pump, is heated by steam from the boiler in a
cylinder, and is pumped out.  The steam comes in direct contact with the cold water on these, unlike the Elesco where the steam is always physically separated from the water.

[Cajonpassfan]

You mean kind of like a tankless water heater from Lowe's? 
Otto

[mmagliaro]

You mean kind of like a tankless water heater from Lowe's? 
Otto

Actually, YES!  There are two cylinders, a cold water and hot water.
Water comes in to the cold cylinder, is pumped into a heater chamber, gets heated, pumped out into the hot water cylinder, and then into the boiler.  The "heater" is a very small tank compared to the big thing you see on top of the front of the boiler in an Elesco heater.

And BTW... This is for the Worthington Type BL. 
The Worthington Type S is a much smaller device with just the cold and hot pumps in it, usually mounted up closer to the front of the engine, and the heater tank IS up on top at the front of the boiler, mostly buried in the smokebox section, but with a small rectangular section showing in front of the stack.
Finally, the SA is much like the S, but the heater appears to be completely down inside the smokebox at the front of the boiler.