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Drag / Anti Drag blocks

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Brownie

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Regarding the problem with this area of the design, is there something I can do whilst at the rib building stage to alleviate the issue? I presume the compression ribs with the fillers aft of the rear spar are not a problem, just the hollow ribs? Could I use a filler in these ribs to solve the problem or just use one piece blocks during the wing build?
Cheers
Mark
 

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