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❏
7. On each of the wing bolt plates make a mark 1"
from the trailing edge and 2" from the root of the wing.
❏
8. Put the wing halves back on the wing tube and
the wing back on the fuse. Align the wing squarely
on the fuselage. This is easily done using a piece
of string as a guide. Put a pin in the tail of the
fuselage at the centerline. Tie a loop in the end of
the string and place it over the pin. Move the other
end of the string to one wing tip and put some
masking tape around the string. Draw an arrow on
the tape where it reaches the wing tip. Now swing
the string over to the other wing tip. If the tip aligns
with the arrow, the wing is properly aligned. If not,
adjust the wing’s position and try again. Continue
to adjust the wing until both wing tips are aligned
with the arrow on the tape. Secure the wing in its
squared position.
❏
9. Drill two 13/64" tap holes at the marks you made
on the wing bolt plates through the wing bolt plate.
❏
10. Remove the wing from the fuselage. Tap
threads into the holes in the ply plates in the fuse
with a 1/4-20 tap. Apply thin CA to the tapped
threads to harden them. Re-tap the threads after
the CA has hardened.
Hint:
Your drill, triggered at
a slow speed, works well as a tap driver.
❏
11. Enlarge the holes in the wings to 1/4".
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