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[quote]QUOTE: Originally posted by BNSFNUT One of the advantages of running locomotive back to back is that when the power reaches the end of it's run you do not have to turn them. You just service them and they are ready to go. As to air brakes on freight cars I will let some one who knows more about them to explain how the work. But railroad cars are designed to set the brakes if a air line parts. For switching this feature is disbled by bleeding the brakes of or turning angle valves on each end of the car. [/quote] Uhhh, no. You can't bottle the air by turning the angle cocks and expect the car to roll free. You need to bleed them off. Bottling the air can eventually cause the brakes to release on a cut of cars as the pressure held in the train line of the bottled train allows the brakes to slowly release, but this takes time and is not an approved method of releasing brakes for MANY reasons. Just ask the foks in LA and Rochester, NY... LC
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