NW Mailing List nw-mailing-list at
Thu Aug 15 13:23:02 EDT 2013

Or a series of articles for the Arrow........just a thought.

Jim Brewer

----- Original Message -----

From: "NW Mailing List" <nw-mailing-list at>
To: "NW Mailing List" <nw-mailing-list at>
Sent: Thursday, August 15, 2013 10:20:16 AM
Subject: Re: Signals

Jimmy is correct. PRR signal aspects are similar in appearance to some N&W aspects, but that is where the similarity ends. The N&W had different rules for their aspects and how they apply.

Older N&W rules had two horizontal yellows over a single marker. That was replaced later with a single horizontal over a marker light with the letter "S" attached to the interlocking number board on the signal.  That is just one example of MANY differences.

It gets complicated, and it would take a great deal of time to explain some of the signal subjects that have been brought up lately. That's why I haven't chimed in on them.

Maybe I should write a book...

On Aug 15, 2013 9:11 AM, "NW Mailing List" < nw-mailing-list at > wrote:

"for the N&W Position light, just use the Pennsy version, as you know Pennsy had stock in the N&W. rulebooks/prr56/index.htm "

Whoa there Lynn. The PRR signals are very different than the N&W signals of similar style.

Jimmy Lisle
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