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Re: SMEE

Posted by VictorM on Mon Apr 24 01:29:46 2006, in response to Re: SMEE, posted by tracksionmotor on Sat Apr 22 22:57:11 2006.

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Freight cars don't use springs for braking force. Each car has its own air tank plus a triple valve which shunts air from the tank to the brake cylinder if there's a drop in train line air pressure. When the train line pressure increases, the air tank is recharged and air is let out of the brake cylinder, releasing the brakes.

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