If you are worried about stringlining, why would you add super elevation and compound the problem?
Old Fat Robert So, here is the question that comes to my mind. Do we "report" the effective grade on these curves to include the 32/R figure or merely go with the rise/run mathmatics. I have some 26 in. radius curves that by rise/run figures are at 2.5% grade . Should I be explaining to visitors that on those curves we are really looking at 3.73%? This is a significant difference and it would (it seems) matter greatly to those among us that are really in to the details of the hobby.
So, here is the question that comes to my mind. Do we "report" the effective grade on these curves to include the 32/R figure or merely go with the rise/run mathmatics. I have some 26 in. radius curves that by rise/run figures are at 2.5% grade . Should I be explaining to visitors that on those curves we are really looking at 3.73%? This is a significant difference and it would (it seems) matter greatly to those among us that are really in to the details of the hobby.
Why not report both the actual physical grade and the effective grade? Could be a learning opportunity for your guests. Model railroaders will recognize the difference right off. But before you print signs/labels and whatnot, you might want to wait just a little while. As reported eariler in this thread (and perhaps elsewhere as well), the LDSIG is conducting experiments to gather some data to see if the 32/R number still holds up.
Robert (Middle Age and a Little Plump)
LINK to SNSR Blog
Carl425: I asked the question in an attempt to learn more about (model) railroading. For me, it is a 2.5% grade. And when a casual visitor inquires about the grade that would be the answer. If you or Tony Koester visited my layout, I would hope to be able to supply you with a more complete answer. Thank you for your response. The track charts you mentioned in your reply would not generally be available to the public, would they?
Thanks again
Old Fat Robert
Old Fat RobertThe track charts you mentioned in your reply would not generally be available to the public, would they?
The ones I was refering to are in the book "N&W Clinch Valley Line".
You can find it here:
http://www.nwhs.org/commissary/Books-Others.html
The track charts are available here:
http://www.multimodalways.org/archives/rrs/NS/NS%20Track%20Charts/NS%20Track%20Charts.html
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