Jim Fitzgerald Wrote:
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> That may be true for Class 1, but there are many
> armstrong switches existing on tourist railroads
> all over the USA. Sadly the last ones I saw
> operated were on the McCloud, and all that track
> has been torn up since then.
Apparently you're not clear on what an "Armstrong" Interlocking is, so here's an example: [
www.towers.txrrhistory.com]
I can't speak for tourist railroads, but there are (were) no interlocking plants of any kind on the McCloud.