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Old 07-13-2010, 08:01 AM   #1
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We had our first dinner guests in our RV. Our son & daughter-in-law were (coincidentally) tent camping in a nearby campground and we asked them over for dinner.

Our daughter-in-law asked what sounded like a simple question:

“Why is a 5th wheel called a ‘5th wheel’?”

I spent a little time trying to find an answer…no luck?

So, I await enlightenment!

Take care,

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Old 07-13-2010, 09:03 AM   #2
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At your service, why is it called a 5th wheel.

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Old 07-13-2010, 03:18 PM   #3
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Originally Posted by 007";669029]At your service, [B][URL="http://en.wikipedia.org/wiki/Fifth_wheel_coupling
why is it called a 5th wheel.[/URL][/B]

What did we do before Wikipedia? Yeah, I'm old enough to know the answer to that. In fact, at home, I've got a barely used, leather bound complete Encyclopaedia Britannica and a companion set of Annals of America. Really nice books...barely used.

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Old 07-13-2010, 04:27 PM   #4
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I always wondered about that too, thanks 007!
Vickie & Ronnie
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Old 07-13-2010, 07:30 PM   #5
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Interesting... I knew the hitch on a Semi is called a 5th wheel, assumed it was because it is kind of wheel shaped.

I have towed a 4-wheel farm wagon of the kind where the entire front axle pivoted (like a little red wagon often does) when you turned.
Home is where I park it!
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Old 07-15-2010, 07:27 AM   #6
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Odd , these are usually mounted on Big Duallys around here ... Does that make them the Seventh wheel ... or just a fifth wheeler +2 .. ???

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