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Date: Sun, 24 Jan 2010 18:07:52 -0500
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From: billhogarty <billhogarty@hughes.net>
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Hello Gary:

Thanks for the reply.  Squish plates was suggested by a machinist from 
Lawrence Livermore Lab when he observed my strange tire wear.

When I lowered the plane onto the plates, I was amazed at how much the 
gear spread out.  It appeared that the angle of the tire in contact with 
the ground (plates) changed quite a bit.  Then I started thinking that 
the "gear spread" had to be a function of total aircraft weight.  So, do 
you use your takeoff weight, your average landing weight, or somewhere 
between???

As it turned out, the shims had to be cut again when using the squish 
plates so now I'm really confused because the strange wear pattern on 
the tires continued.  Go Figure.

This time I will measure the toe-in and camber with and without the 
squish plates and see what the difference actually is.  Let me know if 
you have any other thoughts.

Regards, Bill Hogarty