GREAT PLANES RV-4 Instruction Manual page 16

41. Fit the leading edge in place on the balsa sub
leading edge. The notch you just cut from the leading edge
should fit around the tab extending from W1. Once you are
satisfied with the fit, glue the leading edge to the balsa sub
leading edge on the front of the wing.
42. Trim the ends of the leading edge to be flush with
the ends of the wing.
43. Locate the left ABS plastic wing tip. Trim it on the
cut lines. When cutting the trailing edge of the wig tip there
is a cut between the top and bottom of the wingtip.
44. Locate rib W5 and insert it into the plastic wing tip.
Position the rib to be flush with the end of the wing tip then
glue it in place with thin CA. At the trailing edge of the plastic
wing tip, the top and bottom of the plastic wing tip will need
to be glued together with thin CA.
45. Place the wing tip onto the end of the wing. The
notches in W5 should fit onto the wing spars that are
extending from the wing. Important: You now need to make
a decision on how you wish to do the final installation of the
wing tip.You can permanently glue the wing tip in place on the
end of the wing or you can tack glue it in place by applying a
drop of CA to a few spots on the wing tip and the wing. If you
choose to tack glue the wing tip in place it can be removed,
making it easier to apply your covering. This will also allow
you to paint the wing tip without it being attached to the wing.
After the covering is applied and the wing tip is painted, you
can permanently glue the wing tip in position. Either way will
work. The choice is left to your personal preference.
46. Sand the leading edge of the wing to shape as
shown on the wing cross section of your plan. Sand the wing
top and bottom to match the ABS wing tip.
16