1218 Feedwater

Thu Feb 28 06:06:56 EST 2019

Certainly this would be a neat idea. Possibly the  water tender should have had a control cab to allow bi-directional operation and avoid the need for turning .

Steam turbine technology linked to ac power generation and traction motors (again possibly including motors on the water tender?) would seem to be an interesting set of options to ponder . Still some big issues on fuel logistics, handling and ash disposal to accommodate but not insuperable. 1200 had all the inherent problems of a one off prototype.

Regards

Phil Mortimer

From: NW-Mailing-List [mailto:nw-mailing-list-bounces at nwhs.org] On Behalf Of NW Mailing List via NW-Mailing-List
Sent: Wednesday, February 27, 2019 10:35 PM
To: NW Mailing List
Cc: NW Mailing List
Subject: Re: 1218 Feedwater

I think in spite of its weaknesses and inadequacies due to things like this I think it was a great attempt at what it was designed for. The technology of the day just wasn't up to the job desired. Turbine blade design and development lacked, the pump wasn't up to the high demands of the boiler and obviously the generator wasn't up to snuff. Maybe with the technology today a Jawn Henry could be a success. Nice thought anyway.

Roger Huber

Deer Creek Locomotive Works

On Wednesday, February 27, 2019, 4:22:15 PM CST, NW Mailing List <nw-mailing-list at nwhs.org> wrote: 

Gordon - 

Add my name to those envying you your Juan Henry ride!

In everything I’ve heard and read about it, including Louis Newton’s excellent observations, I come to the conclusion that the only part of it that really worked well was the boiler.  In the days before traction alternators (EMD’s AR-10, for instance), it didn’t work well trying to pull 4500 HP out of a DC generator of a size that would fit on a locomotive – someone told me that grounds blew holes in the commutator big enough to hide a softball in.  The peripheral pains in the rear end just helped doom it. 

How far off base am I with this observation?

- EdK

From: NW Mailing List via NW-Mailing-List 

Sent: Wednesday, February 27, 2019 4:02 PM

To: NW Mailing List 

Cc: NW Mailing List 

Subject: Re: 1218 Feedwater

Gordon,

Failed trip or not I envy your ride in the 2300! 

Just think if it had been a useful engine having a fleet of them running around the N&W.

Roger Huber 

Deer Creek Locomotive Works

On Wednesday, February 27, 2019, 2:53:47 PM CST, NW Mailing List <nw-mailing-list at nwhs.org> wrote: 

When I was doing shift work at the Shaffers Crossing roundhouse the summer of 1956 and got off the third shift one morning, I learned that the 2300 had been called for a Blue Ridge pusher, so I took advantage of this opportunity and my pass which had the inscription "good on engines and freight trains," and hopped aboard.  My rest could wait!  As we pushed a freight train up the Blue Ridge grade the main water pump went out and the emergency pump had to be placed in service.  After that one push, we returned to the roundhouse for repairs.  A not-too-unusual routine for Big Jawn.

I also remember another occasion when the loco was on the roundhouse turntable and one of the shopmen saw it there and remarked, "Is that thing in here again?"

Gordon Hamilton

On 2/26/2019 5:12 PM, NW Mailing List wrote:

This was certainly a big problem.  Other problems were the turbine and generator leading to its demise among other things.

Bud Jeffries

From: NW Mailing List via NW-Mailing-List 

Sent: Tuesday, February 26, 2019 11:43 AM

To: 'NW Mailing List' 

Cc: NW Mailing List 

Subject: RE: 1218 Feedwater

I think this was one of the most troublesome items on the JH. If this had been resolved who knows what might have developed. A series build of JH clones perhaps?

Phil Mortimer 

From: NW-Mailing-List [mailto:nw-mailing-list-bounces at nwhs.org] On Behalf Of NW Mailing List
Sent: Tuesday, February 26, 2019 1:34 PM
To: NW Mailing List
Subject: Re: 1218 Feedwater

Jawn Henry’s locmotive diagram does not list a feedwater heater per se.  It lists a “feedwater pump – Ingersoll-Rand and Coffin”.

Bud Jeffries

From: NW Mailing List 

Sent: Monday, February 25, 2019 9:26 PM

To: nw-mailing-list at nwhs.org 

Subject: Re: 1218 Feedwater

I don’t remember offhand, but you’re probably right.  I forgot.  You never say never . . .

EdK

From: NW Mailing List 

Sent: Monday, February 25, 2019 1:24 PM

To: nw-mailing-list at nwhs.org 

Subject: RE: 1218 Feedwater

Ed, Seems like I remember NW used a Coffin on the Jawn Henry and it was problematic to say the least. Pls correct if mistaken.  Thx, John Garner

From: NW Mailing List [mailto:nw-mailing-list at nwhs.org] 
Sent: Sunday, February 24, 2019 3:19 PM

To: NW Mailing List mailto:nw-mailing-list at nwhs.org
Subject: Re: 1218 Feedwater

Mike - 

The A class engines used a Worthington 6-SA feedwater heater system.  There was a turbine pump under the left side of the cab to provide the cold water and there was a hot water pump under the left running board at its forward end.

All the Js and the Y-6bs used Worthington SA systems.  N&W had hundreds of engines equipped with the earlier Worthington BL feedwater heaters, which appeared under the left running board and incorporated the pump and heater in one casing.  The Worthington systems were very efficient and dependable and, AFAIK, N&W never used feedwater heater systems from any other manufacturer (Elesco, Coffin, etc.) nor did it feel it necessary to build its own.

Ed King

From: NW Mailing List 

Sent: Sunday, February 24, 2019 11:31 AM

To: NW Mailing List 

Subject: 1218 Feedwater

In this topside view of 1218 can be seen what I assume is the feedwater heater forward of the stack. Was this an in-house design or a product of an outside manufacturer?

Mike Pierry, Jr. 

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