On Fri, 2 Jan 2009 12:03:28 -0500, "Eisboch"
wrote:


"Richard Casady" wrote in message
.. .
On Thu, 1 Jan 2009 10:28:17 -0500, "Eisboch"
wrote:

Best traction is with skinny tires, putting more weight per square inch of
footprint.
The big, fat tires, kept soft are good for running on a sandy beach.

The way to get more weight per sq inch of footprint is to raise the
tire pressure. At a given pressure, you get the same area of footprint
no matter what shape tire.

Casady


You'll have to run that one by me again.

Weight of vehicle divided by tire pressure gives contact area. The
shape of the contact patch can vary with the width of the tire. The
area doesn't vary.

Casady