Oh yes yes I'll answer!
I just got up.
I used to think like you probably do now, but I have found out, that there is a pretty good method to accomplish this.
It involves some tweaking, but you'd be suprised to see how good/perfect the results gets, but simply adjusting a few cv's.
I'll try to explain without pics. It's pretty easy.
1) Start with your nurbs surface of the main wing, like the one I see in the pic above.
2) delete anything else, and insert a few isoparms on the outer edge of the wing.
3) The trick is to go into hull mode, and pick the outermost hull, thus selecting a bunch of cv's on the hull alone. Then press "r" to scale'em inwards. The point here is to scale these points soo close that it closes the gap. But, I alway pick the points individually and position these cv's on top of each other, to close the cap completely.
4) Repeat with the next hull cv's, but they are just to be scaled a little inwards. But after scaling them inn, you should axis-snap-move these points out to the outermost hull. More specific, right on top of this hull. The point is to create a good continuity around the edge of the wing.
This has to do with the following; Whenever two hull lines are forming a straight line you got perfect tangency. It's as easy as that imho.
By tweakin the cv's you can shape the whole wing tip to whatever shape you want. My "duck" seaplane wingtips was made this way.
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