NW Mailing List nw-mailing-list at nwhs.org
Sun Nov 26 17:54:03 EST 2006

I have heard that Steam Whistles when Cold will Squeal, I have also been
told that if to pull the cord just right that it will set up a Harmonic
causing ti to Squeal. Just what I have herd.


Nathan Simmons
trainman51 at gmail.com

NW Mailing List wrote:

> On one of O Winston Links recordings at Blue Ridge (Thunder on the

> Blue Ridge) , a coal train is recorded with the lead engine's whistle

> breaking into a high pitched scream -- the lead engine was usually an

> "A" , did any "A"s have another whistle, or was it something the crew

> did to make the scream . or was it the "Y" ?? Ron H


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