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Traction Motors.
Having worked on the West Coast Main Line, as I did, and in the days of 84s, 85s, 86s and 87s and the 310 units which used to be on there, and living close to that line today , I hear the trains all day and night. But I know very little about todays modern electric traction....having said that when I listen to the Traction motors of some trains, they always seem to be "screaming", it is hard to describe really, but are the modern traction motors a lot different to the ones in the 70s and 80s ?
Perhaps someone who knows about todays trains can tell me ?
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