[wxwatcher]

Dan,

Wear on the outside of the tires on a Cessna would appear to be normal due to the type of landing gear they have. The spring steel setup droops a bit when the airplane is airbourne. The first part of the tire to touch down is the outside edge, then the rest as the gear takes the weight of the plane. That means the greatest landing force and wear will be on the outside edge of those tires. Don't think there's a way to address that problem.

The PA28 is different since it has a trailing beam setup. Most of the landing force is absorbed by the main tread of the tire, so there may be a way to "align" them, but I'm not sure.

As for the rough surface of the runway.. Wait until you have rain or some other surface contaminate on the runway and you'll be happy to have that rough surface. Not the best for tire wear, but it does wonders for traction and braking action. :-)

Jerry

------------------
Comments and opinions are my own and do not reflect those of my employer.