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Running diesels in electrified territory


nostalgia

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The problem with the LIRR DM's is that when an engine gaps out on the third rail, it goes into dynamic braking automatically, slowing the train down.

 

 

Which is a non issue. If you have another unit 700ft behind you, you are still drawing power from the rails. I am not sure of what the longest distance of unavailable powered third rails are in Penn but im positive its nothing over 200 feet.

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  • 3 weeks later...

Which is a non issue. If you have another unit 700ft behind you, you are still drawing power from the rails. I am not sure of what the longest distance of unavailable powered third rails are in Penn but im positive its nothing over 200 feet.

 

 

Its so the engineer can see if he is gapping, amtrak doesn't need double ended diesels because their diesels are always at the head end, if a lirr was to use a cab car on one end he wouldn't be able to tell if the locomotive itself is gapping or not

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