R179 8258 Posted July 18, 2015 Share #1 Posted July 18, 2015 How come with the R142 I hear a release of air coming from the train. I'm not talking about when the breaks are released. I'm taking when the are jerking from left to right you hear it , sometimes you the train pick up speed you hear it lol And answeres ? Lol Link to comment Share on other sites More sharing options...
ttcsubwayfan Posted July 18, 2015 Share #2 Posted July 18, 2015 Wow, that was a mess of a post. When exactly do you hear the release of air coming from the train? If it's at a terminal, it's likely that you heard the emergency brakes being applied. Link to comment Share on other sites More sharing options...
trainfan22 Posted July 18, 2015 Share #3 Posted July 18, 2015 I assume OP is talking about the whirling sound the 142s make at speed, the 160s don't do it despite using the same propulsion system. Link to comment Share on other sites More sharing options...
Fresh Pond Posted July 18, 2015 Share #4 Posted July 18, 2015 How come with the R142 I hear a release of air coming from the train. I'm not talking about when the breaks are released. I'm taking when the are jerking from left to right you hear it , sometimes you the train pick up speed you hear it lol And answeres ? Lol Those trains (along with the other NTTs) have an air ride suspension. What you hear is the air coming out of the airbag that the car body sits on Link to comment Share on other sites More sharing options...
R179 8258 Posted July 18, 2015 Author Share #5 Posted July 18, 2015 Those trains (along with the other NTTs) have an air ride suspension. What you hear is the air coming out of the airbag that the car body sits on Oh so that's the sound thanks a lot Link to comment Share on other sites More sharing options...
2 Train Master Posted July 18, 2015 Share #6 Posted July 18, 2015 Yeah the R-142's with their unique hissing whether they're in motion or just coming to a stop even being at a complete stop they let out a few hisses. Link to comment Share on other sites More sharing options...
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