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Acro 2 top wing Pitts airfoil prelim layout

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Dennis Flamini

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Chris,
Check it out.
From Pitts forum, the S2 top wing spars are front 4 1/2" x 15/16"
rear 4" x 7/8".
Since we have a center section over 4' span the loads on the wings
will be less than a Pitts and our weight much less.
Dennis in Chicago
PS; Anyone know the spar centers on S2?

View attachment acro 2 NACA 642-015 top wing layout.pdf
 

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