Q Wrote:
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> Pardon my ignorance, but what exactly is an
> "alignment control coupler"? What "alignment" are
> they controlling, and how. Why are they required
> if coupled next to a locomotive? Or do all
> freight cars next to locomotives also have them?
>
> Thanx
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Q, I'd wondered the same thing. The best explanation I found was about 1/4 down in this accident report [
www.tsb.gc.ca], which indicates that operating a train or a railroad isn't a simple thing.