ur-quattro at msn.com
Fri May 28 18:44:37 EDT 2004
If there's no air in the tire, the car will be resting on the rims.
> -----Original Message-----
> From: Brady Moffatt [mailto:bradym at sympatico.ca]
> Sent: Friday, May 28, 2004 7:14 AM
> To: George Harris; Doug Johnson
> Cc: quattro at audifans.com
> Subject: RE: hydroplaning
> It's starting to make sense to me now, though the air
> pressure in the tire equalling the pressure to the ground
> hypothesis has limits. Obviously a car is not weightless is
> there is no air in the tires.
> I think the definition of contact patch is the problem here.
> For the equation to be valid, my guess is that contact patch
> (let's call it tread block area) is defined as the area of
> the individual tread blocks within what we consider to be the
> usual contact patch. Then, tread design becomes a factor. A
> spindly little slick of tread block area 'x' may hydroplane
> at the same speed as an aggressively treaded performance tire
> of the same tread block area, but it certainly won't have the
> same limits in any other area of performance.
> Waddaya think? Make sense?
> Cheers, Brady
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