Originally Posted by
jester_s1
It's not hard to add barn door type ailerons to a model. You start with a properly built wing per the plans, then cut out the ailerons from it being sure to cut the straight and both the same. Then you cut 3/8 more away from the wing so you can add it back as a balsa trailing edge. Do the same to the aileron pieces (3/8 or 1/4 depending on their thickness and what it will take to make a nice bevel) and then cover and hinge. Anybody that can build a kit can add ailerons.
Of course, if you're going to do that it's helpful to reduce the dihedral to 1/2 of what it should be without ailerons. That's a but more involved, but not much more.
All it takes is changing the angle of the inboard end rib on each wing half. Easy way to do that is to glue everything to the spars EXCEPT the inner rib and raise the outboard end up to where you want your dihedral to be. Then you mark the spars to show the angle, make an oversized rib, glue it in after slotting for the spars and sand the top to match the rest of the ribs. Will add maybe 30 minutes to the wing build, if that