S1a and M2 Automatic

[nw-mailing-list at nwhs.org]

To add further to what Jim has said, The S1/S1a's were very dependent on the type service they were in. When switching in a yard with much starting and stopping, they were less demanding for coal. When working on a branch line with more continuous running, they were more demanding. Two yard engineers from Roanoke that I interviewed said normally they took on coal once and water twice daily when working 'round the clock.

Bud Jeffries
  ----- Original Message ----- 
  From: nw-mailing-list at nwhs.org 
  To: NW Mailing List 
  Sent: Sunday, September 17, 2006 12:07 AM
  Subject: Re: S1a and M2 Automatic


  The capacities resulted from the designers seeing how big a tender they could put on that frame  and still allow clear vision to the back.. Incidently, the frame on both tenders under consideration was the same one. (from a USRA 12,000 gallon tender) At the time, I think I heard someone in Bluefield say an S1a burned 500 pounds an hour, so the 15 ton bunker would last 48 hours or more at that rate.  Jim Nichols

  nw-mailing-list at nwhs.org wrote: 
    All,

    Some questions/clarification:
    First on the coal side:
    The S1a had a 15 ton tender.  this was designed around 24 hours? or 12?
    The M2 Automatic had 20 ton tender.  I read it was designed around 2 days of fuel 48 hours?  Is this true? 

    Second Water:
    The S1a had 13,000 gallons in tender.  what time span was this based on. 2 fills per coal fill? 3
    The M2 Automatic 11000 gallons.  Any ideas?

    Thanks,

    John Rhodes

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