1218 Feedwater

[NW Mailing List]

That cover give access to the superheated header and front end throttle assembly. It also gives access to loosen superheated units for install and removal. Engines with a front end throttle (J's, A's, S-1's, Y6a and b's) all have this cover.  An engine with a jacketed smoke box would have this access covered.....for example the 611. Will Sadler Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: NW Mailing List <nw-mailing-list at nwhs.org> Date: 2/27/19  4:46 PM  (GMT-05:00) To: NW Mailing List <nw-mailing-list at nwhs.org> Subject: Re: 1218 Feedwater 
    There certainly have been good discussions on feedwater heater
      pumps based on this excellent top view of the 1218, but I'm
      surprised that no one has questioned the opening in the
      boiler/smoke box jacket immediately behind the smokestack,
      obviously giving access to a bolted smoke box cover (Archives
      drawing NW-C33710).  I say that I'm surprised because I can not
      see comparable openings in the few suitable views photos of other
      Class A loco's with jacketed smoke boxes that I have been able to
      find.  So, this appears to be a modification to 1218 only.  Any
      thoughts?
    Gordon Hamilton
    
    On 2/24/2019 3:18 PM, NW Mailing List
      wrote:
    
    
      
      
        
          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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