Leon and Everyone,

 

What I was able to determine is these tires meet certain weight, speed, and temperature requirements only at a certain inflation.  I was happy to find the 4% fudge factor for loaded tires, I've always wondered about that.

 

If you feel you want more pressure in your tires than the chart shows, you should upgrade to more plies.

 

The Goodyear literature says to figure the weight on the mains by calculating at the rear CG at max gross weight, most forward CG for the nose wheel.

 

The mains are rated at 1,750 and the nose wheel at 1,285 so I don't think we need to upgrade to the 8 ply tires.

 

The Goodyear literature also says you can't judge tire pressures by looking at the tire!

 

So it sounds like 44 for the mains and 52 for the nose wheel would be according to the book.

 

Mike