Bill Freeman wrote:

Paul,
Not sure about the strength of that oil pan.  I'll bet if you jacked up the
airplane with a single support point in the middle of the oil pan it might
make a dimple.

Bill Freeman

Just a joke, looks hell for stout.

It is about three times thicker than my O-470 pan.
Bruce wanted to make the whole thing out of .125 but 
I put my foot down and insisted on .065 :-)
0.040 would have worked fine and have been much lighter of course.
The back panel is .125 because that forms part of
the rear motor mount.

Paul Lamar
 
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