>
>I mentioned this accident to my wife, and she said she heard a TV news
>report that said the train was changing crews, and it may have been on a
>slope. So, we may be talking about "parking breaks". It did a lot of
>damage.
>
The accident strikes me as being a bit odd. The Westinghouse Safety Brake
applies the brake shoes in the absence of compressed air, the opposite of the
earlier K-Brake system. This was the invention that made George Westinghouse
fabulously rich, before he teamed up with Tesla and began generating
electricity. The brakes should have been fully applied as soon as the air
coupling from the locomotives was broken. It's basically a dead-man system.
This accident actually sounds more like deliberate sabotage.
Chris
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