Eli5: Why do large dump trucks carrying large dump trailers have such a long hitch?

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Noticed a large dump truck driving around a construction site at the airport and the dump trailer it was carrying had a hitch almost as long as the trailer. Why is this? Maneuverability? Helps with leverage when dumping the trailer?

In: 94

8 Answers

Anonymous 0 Comments

That setup would be a unicorn in Michigan. I do see that long tongue setup a lot on the West coast. Maybe load limits play into it. I Gotta think Mountain roads would be easier with long tongue too.

Some special law allows 180k GVW in Mich [https://flic.kr/p/9qtbvJ](https://flic.kr/p/9qtbvJ)

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