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[quote]QUOTE: Originally posted by jwr_1986 Drawbars are used in any situation where cars are not normally uncoupled. A great example is the Thrall well cars that usually run in permanently coupled three or five car units. Thus only two actual couplers are needed for that entire set. Save time, save money. Jesse[/quote] And to reduce coupler slack action which can damage cargo. Roadrailers use the same concept.
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