THUNDER TIGER Piper J-3 Cub Assembly Manual page 9

Apply 30-45 Minute Epoxy to the left wing panel spar box as well
as the entire root rib. Carefully join the two wing panels together.
Wipe off any excess epoxy. Block up each wing tip 5/8" and allow to
cure. It may be necessary to use masking tape to hold the wing pan-
els in position until cured. Photo 24)
Photo 24
Use the hardwood wing bolt plate as a template. Draw a reference
line on the top of the wing at the trailing edge. Using a hobby knife
carefully cut the covering and remove from the wing. Use caution not
to cut into the wing skin. (Photo 25)
Photo 25
Using 5-10 Minute Epoxy, glue the hardwood wing bolt plate into
place. Locate and mark a reference point 5/8" in from each side and 1-
3/8" up from the trailing edge of the wing. Using a 9/32" (7mm) drill,
drill a hole through the wing at each reference mark.(Photo 26)
Photo 26
Place the wing on the fuselage. Carefully align the wing ensuring
that it is centered on the fuselage. Using a 19/64" (7.4mm) drill bit,
drill through the wing into the wing hold down plate in the fuselage
using the previously drilled holes as a reference. (Photo 27)
Photo 27
Remove the wing from the fuselage. Install the blind nuts in the
bottom of the wing hold down mounting plate. Install the wing hold
screws in the blind nuts and pull up tightly ensuring that the blind
nuts are secured in place. (Photo 28)
Photo 28
Remove the wing bolts and trial mount the wing to the fuselage.
Adjust as necessary to ensure proper alignment. (Photo 29)
Photo 29
Remove the wing and cover the center joint with the trim cover-
ing provided.
9
WING ASSEMBLY