Owen Hughes wrote:
> Any idea whether the flex is really a problem? We are pushing to get
the plane finished an flying by the end of next summer - so I don’t want
to push my son into doing unnecessary mods.
If it's aluminum and it's flexing, it's in danger of failure to to
bending fatigue (and would be even if it were steel). The magnitude of
the stress is what determines whether or not it's operating above the
"fatigue limit", but that's difficult to quantify, especially when the
part is buried in the wing. It could be that all of the torsional twist
is over the length of the tube, rather than at the bent end, and that
would probably be well below the limit. But if I understood you
correctly before, Joe Horton said it was flexing at the bend, and I
trust his judgment. One things's for sure....a "split flap" situation
at low speed on final could be a quick killer....
Mark Langford
m...@n56ml.com
http://www.n56ml.com
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