Old B&M charts: what aspects do the signals represent?

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Old B&M charts: what aspects do the signals represent?

Postby BostonUrbEx » Mon Sep 04, 2017 10:39 am

Here is a sample of a stereotypical B&M chart: http://www.nmro.org/samp-n-plan.jpg

I'm looking for a key for the signal masts, as the different patterns represent the different potential signals that can possibly be displayed.

The only thing I can figure out for certain is that the circles with a horizontal line through them are only capable of displaying red. The rest have seemingly endless possibilities.

EDIT: also, circles with a diagonal line from top left to bottom right are heads that can only display a red or yellow.
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Re: Old B&M charts: what aspects do the signals represent?

Postby jbvb » Thu Jan 11, 2018 2:51 pm

I have never seen a key. Have you tried asking Scott Whitney (who sells those plans/charts via NMRO)?
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Re: Old B&M charts: what aspects do the signals represent?

Postby doublebell » Thu Jan 11, 2018 3:24 pm

There is a BMRRHS bulletin that shows all this.
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Re: Old B&M charts: what aspects do the signals represent?

Postby doublebell » Fri Jan 12, 2018 8:51 am

The specific BMRRHS Bulletin that shows this is Volume XV, Number 2, from 1987
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Re: Old B&M charts: what aspects do the signals represent?

Postby BostonUrbEx » Thu Apr 05, 2018 10:00 am

Does anyone know the best way to reach out to Mr. Scott Whitney? I struck out in searching for an email or any contact information, and I struck out trying to initiate contact on FaceBook.

Also, I was unable to find B&MRRHS Bulletin XV #2 online, nor is it in the society's latest catalog (which is dated 2015 and might not even be a valid/up to date catalog).



I reached out via email to B&MRRHS for both contact information and/or the bulletin. Hopefully they'll be able to help me out, but if not, any guidance would be appreciated.
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Re: Old B&M charts: what aspects do the signals represent?

Postby Mikejf » Thu Apr 05, 2018 1:39 pm

I have seen his name on the email list for the NERail group...
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Re: Old B&M charts: what aspects do the signals represent?

Postby Pat Fahey » Fri Apr 06, 2018 5:38 pm

Hi All
The best way to reach Scott Whitney would be to buy some of his Track charts, from his webpage, National Militant Railfan Organization.
http://www.nmro.org On his page you will find an email address, in which to contact him. Pat
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