Make a new folder Jerry.

Here is what we decided on the lower firewall connection.

The angle of the lower tubes is almost straight in.


Old messages.


    > That would be great. If you moved the upper ones up 5 inches  higher
    > and
    > the lower ones out 5 inches and up one inch that would make it a
    > near normal
    > airplane :) It would look like the Lagacy.
    >
    > Beef it up with a couple of layers of carbon.
    >
    > --
    > Paul Lamar ...No rotor no motor.





   Paul,

   OK, that settles it.  These are changes I know I can make and I'm
   sure it will be a much better mount - like the Legacy.  Seems  like I
   remember reading about 360 guys starting to see engine mount  cracks.
   They were thinking it was being caused by nose wheel shimmy.   Perhaps
   not. Please revise the mount drawings and let me take a peak.

   Thanks for all the work,


   Steve

   OK Steve will do. I hope to do the same on mind if I get one.
   --
   ------------------------------------------------------

   Steve,

   We need to depart slightly from the traditional firewall hard
   point details due to the shallow angle of the lower one inch OD  tubes.
   Here is the problem and the solution. Use four 1/4 inch bolts  rather
   than
   one 7/16 bolt. The four bolts have a tensile capacity of roughly
   19,600 pounds at 100,000 psi stress level while the 7/16th bolt
   would be about 15,000 pounds at the same stress level. In other  words
   way over kill in either case.

   The round part (washer) is 2 1/8 OD. Use allen head bolts for
   clearance reasons around the tubes.



Paul Lamar ...No rotor no motor.

Paul,  That is a good way to handle straight in (low angle joinery).
I think it would often be preferable even when angles are higher.  I
will have  questions later.  I am just now unpacking the stock engine
mount.   Jerry


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