Hi, I'm an architect working on a a bookmobile garage/drive-thru area for a Barth 31-S bookmobile. The wheelbase is listed at 195", but I have no idea what the turning radius is.

Would love it if you could help refer me to someone who can help. I understand the manufacturer is out of business...?

Because a Barth is made like a tank you don't need to know that.

Welcome to the site.

I think your's is a single axle with the Ford Oshkosh chassis. Do you have pics? Where do you live?

I have a 33-s so I can't help but tell us about your coach.



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If you can have the steering angle measured at max deflection, and know the overhang, it becomes either math or drawing a diagram.

My suggestion is to borrow the motorhome, and take it to a shopping mall with a large
empty parking area. Bring some yellow chalk
and the longest tape measure you can find.
Mark the outside of the front RH tire location, turn the motorhome 180 degrees
in a RH turn, and mark the outside tire
location again, and measure the distance
between marks. Repeat the process for a LH
turn. You can spend a lot of time in finding the turning radius for the brand
of chassis that your considering, and the
variation in turning radii from chassis to
chassis can foul you up. The most accurate
method is to measure the actual motorhome,
not try to calculate it. I speak from ex-
perience.

Jake Jacobson