City of St Louis (NW Modeling List)

[NW Modeling List]

Speaking of low grade UP coal, about 25 years ago I was visiting with the UP folks at North Platte. There had been a derailment of a coal train west of the yard and we went out to view the clean up. I made an un-wise comment. It looked like the coal had been cleaned up to me but there was a lot of greenish looking dirt I though laying around.  My comment about a good cleanup of the coal met with puzzeled looks from the UP people. The greenish dirt was their coal. Harold Davenport

--- On Wed, 2/24/10, NW Modeling List <nw-modeling-list at nwhs.org> wrote:


From: NW Modeling List <nw-modeling-list at nwhs.org>
Subject: RE: City of St Louis (NW Modeling List)
To: "NW Modeling List" <nw-modeling-list at nwhs.org>
Date: Wednesday, February 24, 2010, 7:26 AM


Many UP Challengers were modified to burn oil (including the still-operable 3985) without any major problems.  This would probably qualify as "better fuel" if not better coal.  I don't know if this affected their output or not.  However, the Big Boys didn't like the change in diet on an experimental basis and were not converted to oil-burners.  There appears to be more involved than removing grates and installing an atomizer.  I also suspect that just loading the tender with 14,000 BTU coal without looking into other modifications (drafting being one) isn't the answer either.  UP's on-line coal sources were pretty low quality, somewhere around 10,000 BTU/lb IIRC.

FWIW, UP 844 was also converted to burn oil with not problems mention that I know of.

Dave Stephenson.




      
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