Kenny,
This below is my post from post #608. It was the production 2 part wing that failed not the 3 part. I still wonder if Ruppert wishes they stayed with the 3 part wing.

Welcome back George. I see your manners have improved.

Karl

I know you gentlemen are thinking of the 2 part wing with a center box but I
would once again like to mention a 3 part perhaps folding wing.

Once again a 3 part wing eliminates the heavy most likely to fail highest stress
part of the airframe as per Dieter Reich. I bet Ruppert wishes they stayed
with the 3 part wing like their prototype.

Here's a photo for thought.

groups.yahoo.com/group/Carbondragonbuild...hotos/album/2122714\
73/pic/495742754/view?picmode=large&mode=tn&order=ordinal&start=1&dir=asc

Here's the spin characterists for the Arc and also the highest stress area
failing.



Now that we are in the early stages of design concept I am putting the 3 piece
wing up again for discussion.

Rupperts original 3 piece wing.

vimeo.com/29536897

Regards,

Karl

--- In This email address is being protected from spambots. You need JavaScript enabled to view it., Kenny Andersen wrote:
>
> WHAT?!!!  All the pics that were posted, plus the stuff on their website had 3-piece!  Hmmm, I wonder if they figured out what I just hypothesized (i.e., it's lighter to go with a 2-piece wing!)? I'll look over their website again!
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> --- On Wed, 3/28/12, george_rf1 <george_rf1@...> wrote:
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> From: george_rf1 <george_rf1@...>
> Subject: [Carbondragonbuildersandpilots] 3-piece wing
> To: This email address is being protected from spambots. You need JavaScript enabled to view it.
> Date: Wednesday, March 28, 2012, 12:16 AM
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> Have you all talking heads missed that only the prototype was a three piece wing, and the production version is the classic two piece ?