Originally Posted by
Dave Wilshere
I have covered it in RCJi more than once 😉
Removable wings like this, one piece wing it’s best to put it on the fuselage and reference off each side. I use 2’ long rods and set around 3/8” wider at the rear.
If you use this method (which I do), you have to be sure the wing root is actually parallel with the plane's centerline. Many are, but not all. If not, you can use a string taped between the nose and tail of the fuselage and use that as a reference.