Top Flite TOPA0400 - Manual (Page 23)

BUILD THE AILERONS
❏ ❏
1. Glue the die-cut 1/4" balsa aft LE (ALE)
centered on the die-cut 1/4" balsa forward
LE (FLE).
❏ ❏
2. Use a razor plane and sanding bar to
blend the edges of ALE and FLE.
❏ ❏
3. From a precut 3/32" x 3" x 17" balsa sheet
make an aileron bottom skin. Remember, you cut
the sheets when making the shear webs. Use the
aileron pattern on the plan as a guide. Use the rib
guides on the plan to mark the rib location on the
bottom skin.
NOTE: The aileron skin goes from the outside of
rib A-1 to the outside of rib A-6. After the top and
bottom skins are applied, a 3/32" balsa cap is
installed on both ends of the ailerons. Save the
excess sheeting to make the aileron end caps.
❏ ❏
4. Glue the aileron LE flush with the forward
edge of the bottom skin. The wider end of the LE
goes on the wider end of the aileron skin. The
aileron LE is longer than what is required. The
excess will be removed later.
❏ ❏
5. Glue the die-cut 1/8" balsa ribs A-1
through A-6 perpendicular to the aileron skin.
❏ ❏
6. Glue together two of the die-cut 1/8"
plywood aileron horn bases (AH). Glue the
aileron horn base in place between ribs A-1 and
A-2. The base should be flush with the upward
facing edge of the ribs.
❏ ❏
7. Cut two 1-1/4" long pieces from the
3/4" x 3/4" x 30" balsa stick to make hinge point
backups. Glue the backups at the locations shown
on the aileron plan.
❏ ❏
8. Use a razor plane and sanding bar to
blend the LE and hinge point backups flush with
the upward facing edge of the ribs. Sand the TE of
the aileron skin to the same angle as the ribs.
❏ ❏
9. Glue a second 3/32" x 3" x 17" balsa
sheet to the top of the aileron LE, ribs, hinge point
backup and bottom aileron skin. After installing this
skin, mark it as “bottom.”
❏ ❏
10. Trim and sand the top aileron skin flush
with the LE and bottom skin TE. Sand the ends of
the LE and aileron skins flush with the outside of
ribs A-1 and A-6.
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