28% Cap 232 Assembly Manual
Step 12. Mounting the wings
Push the 1.25 inch aluminum tube spar through the tube in the fuselage until it protrudes an
equal distance on both sides. Carefully push each wing onto the tube until the anti-rotation dow-
els engage the holes in the fuselage side. As the wing approaches the fuselage guide the aileron
extension through the access hole or if you used servo extensions glued to the fuse side just
plug them in.
The wings mount to the fuselage with one 1/4”-20 screw on each wing through the fuselage
side. I use nylon screws because they are more resistant to vibration.
The wing retainer screws are in an awkward location. On my test planes I installed a stud in
one wing. To assemble the plane I first put on the wing that used the screw, inserted the nylon
screw and used a long screwdriver straight through the fuse from the other side to tighten it.
Then I put on the wing with the stud and used a wing nut to retain that wing.
You can also drill the antirotation dowels to accept hairpins
for safety (see photo). Use no larger than a 1/16” drill and pin
to avoid weakening the dowel. Do not rely on the dowels
alone, they are not meant to be used as permanent retainers but
will work in an emergency.
If the holes for the screws or for the dowels do not line up ex-
actly you can use a rat-tail rasp to elongate the holes slightly.
Avoid enlarging the holes for the a/r dowels in a vertical orien-
tation which could change the wing incidence setting.
