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"Singing" Switches

  • I was on the Pittsburgh line today by Conway (CP Leets, MP15) and I heard a very loud ringing noise comming off three switches on track one, one for a spur and two interlockings on the main. I thought maybe they where doing some maintance on them but they looked normal and trains where still running on track one. Anybody got any insight?
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  • When car wheels go thru a curve or a switch,the wheel flange rubs against the inside of the rail,makes a squealing sound. Is that what you heard ?
  • QUOTE: Originally posted by joseph2

    When car wheels go thru a curve or a switch,the wheel flange rubs against the inside of the rail,makes a squealing sound. Is that what you heard ?


    nope, there was no train on or near the track.