I cant figure it out for the life of me… I need to blend these two together. The top foil is what needs to merge/blend or just be re shaped into the bottom one.
Welcome…
You mean it should start out as the top one and along the wing’s length become the bottom one? So basically lofting between the two?
Here is a simple 2-curve loft.
simple loft.blend (95.5 KB)
For more complex lofting see Erindale’s video or Higgsas’ node-groups.
Good luck.
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Welcome 
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Choose your wanted density, add a cylinder with this density and wanted length, in edit mode scale it along z to 0.1, hide one side, edit the profile according to the choosen side with the formost and backmost vertex fitting the front anf back of the profile, unhide, inverse selection, hide, edit the profile accordingly (especially foremost/backmost), unhide…
