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This question already has an answer here:

Wouldn't a wider wing center section be a better solution than adding winglets?

Say adding 5% to the span by increasing the size of the wing box and center section. Like they did when they built that massive An aircraft, using An-124 wings as outer panels.

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marked as duplicate by Bianfable, bogl, AEhere supports Monica, Machavity, Dan Pichelman Oct 9 at 13:19

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