TrainFanatic 1 Posted July 12, 2010 Share #1 Posted July 12, 2010 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. Link to comment Share on other sites More sharing options...
Amtrak7 427 Posted July 12, 2010 Share #2 Posted July 12, 2010 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. Link to comment Share on other sites More sharing options...
bveguy 20 Posted July 13, 2010 Share #3 Posted July 13, 2010 It is the "sensitive rolling" test. It is to see if any part of the train is still "dragging" along. Link to comment Share on other sites More sharing options...
SubwayGuy 2,321 Posted July 13, 2010 Share #4 Posted July 13, 2010 Sensitive roll test done to ensure all air and hand brakes are fully released and train rolls free. Link to comment Share on other sites More sharing options...
TrainFanatic 1 Posted July 14, 2010 Author Share #5 Posted July 14, 2010 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. Link to comment Share on other sites More sharing options...
m7zanr160s 246 Posted July 14, 2010 Share #6 Posted July 14, 2010 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. Link to comment Share on other sites More sharing options...
TrainFanatic 1 Posted July 14, 2010 Author Share #7 Posted July 14, 2010 Very good question. I never thought to ask about that. Thanks Link to comment Share on other sites More sharing options...
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