... The stiffeners look fine and of the right size. One can always cut them down if one wants to live dangerously :)

    BTW you can use a hole saw to cut large holes between the stiffeners if you need to inspect the guts.

Paul Lamar

Jack Beale wrote:

George/Paul,

    Has anyone modeled this in a CAD/CAM system and done a finite element analysis...?

    I don't claim any outstanding expertise on the matter, but (if you're gonna go to all the trouble to make the pattern and
cast it) it may be worthwhile to know where the high stress areas are...

    I've seen some pretty cool stress analyses exhibited on this website, so someone has the capability out there.  Would
someone volunteer...?

Jack Beale
jack.beale@att.net

Due to aluminum sand casting limitations it is hard to get everything thin enough
to worry about stress. Our big problem is excess weight. 

Paul Lamar
 
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