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Slugs

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A slug is essentially a locomotive without a prime mover, receiving power for its traction motors via cables from an adjacent locomotive. Typically a slug is built from a former locomotive, with the prime mover replaced with a large concrete or similar weight. Slugs are most effective at slow speeds, where pulling force is needed, such as yard and hump service.

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Indiana Harbor Belt PB4   Slug

Click image for a choice of 2 photos.

Chicago Rail Photographs collection updated 10 September 2020 at 23:32. Photographs and text copyright © 1998-2000 Harold A. Driscoll, All Rights Reserved. Email address is provided exclusively for personal contact, but emphatically not for use for SPAM net.abuse.