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Small question for T/O's


TrainFanatic

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I'm just curious to know as to why when t/o's depart from a terminal, they always seem to start at the first notch of power for a few seconds and then proceed to full power.

 

That is a test to make sure the brakes have released completely.

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It is the "sensitive rolling" test. It is to see if any part of the train is still "dragging" along.

 

Sensitive roll test done to ensure all air and hand brakes are fully released and train rolls free.

 

Thanks a lot guys.

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I'm just curious to know as to why when t/o's depart from a terminal, they always seem to start at the first notch of power for a few seconds and then proceed to full power.

 

Very good question. I never thought to ask about that.

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