1218 Feedwater

Wed Feb 27 18:21:02 EST 2019

Gordon,
It was a valiant experiment using the technology of the era. I had read several places they were concerned about the boiler holding up as it was designed for marine applications where it would run at a constant power output for many hours or days. The constant applications of power in a locomotive apparently brought up questions as to the design. I guess the boiler was one of the least troublesome features of the 2300. Go figure?
Roger HuberDeer Creek Locomotive Works 

    On Wednesday, February 27, 2019, 5:10:55 PM CST, NW Mailing List <nw-mailing-list at nwhs.org> wrote:  

Roger,

This is just hearsay on the part of some long-forgotten to me, supposedly knowledgeable, commentator, but he opined that many control and power components on the 2300 were selected from available stationary power components where their normal environment included spacious areas with ventilation, whereas the same components were in tight, confined spaces on the 2300.  The higher ambient temperature on the 2300 adversely affect the life of control valve diaphragms, pump shaft seals, etc.

Gordon Hamilton

 On 2/27/2019 5:35 PM, NW Mailing List via NW-Mailing-List wrote:

  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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