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Fig 18 – Right side will go underneath – folded on top first
We start with the side, that will go underneath when the S-folds are finished! First fold the entire
right side over the left (again) keeping it as undisturbed as possible, bearing in mind that the central
width is now our reference – not the wing centreline.
As shown on Fig 19
the right side will go eventually underneath, but you can symmetrically change
the sides, as long as the end result is symmetrically correct. The next step is easier if you have a
helper or clamps/weights or you have enough practice .