THUNDER TIGER Piper J-3 Cub Assembly Manual page 8

WING ASSEMBLY
Place the control horn on the aileron and align with the servo
horn slot in the hatch cover. Drill holes using the control horn as a
template. Secure the control horn with two M2x12 screws and the
backer plate. (Photo 16)
Photo 16
Locate the control clevis and thread onto the push rod. Snap the
clevis onto the control with the servo at the neutral position. Mark the
clevis for the "Z" bend. (Photo 17)
Photo 17
Remove the clevis, cut off the excess wire and insert the "Z" bend
through the hatch cover then into the servo horn. Snap the clevis
onto the control horn. Secure the hatch cover with 4 M2x8 wood
screws. (Photos 18 & 19)
Photo 18
Repeat the above procedures for the left wing panel.
SUGGESTION: Secure any clevis/control horn connection with a
piece of medium fuel tubing about 1/4" long. (Not Shown)
Photo 19
Locate the three wing joiners (2 plywood and 1 aluminum). Apply
a coat of 5-10 Minute Epoxy to each side of the aluminum joiner and
mate the 2 plywood joiner to it. Clamp the assembly together and set
aside to cure. (Photos 20 & 21)
Photo 20
Photo 21
Draw a center line on the wing joiner and trial fit into the spar box
on each wing panel. Sand to fit as necessary. (Photo 22)
Photo 22
When the two wing panels match up perfectly, apply 30-45 Minute
Epoxy to the wing joiner on one half only. Liberally apply 30-45
Minute Epoxy to the spar box in the right wing panel. Insert the join-
er into the spar box wiping off any excess epoxy. Set aside to cure.
(Photo 23)
Photo 23
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