Great Planes Extra 300S 60 Kit - GPMA0236 - Manual (Page 21)

❏ ❏
2. Find one of the 1/16" balsa sheets that you have
saved from the TE sheeting of the wing, and trim it to 2"
wide. Glue the 3/8" x 3/8" x 24" balsa aileron LE to the
sheet, aligning it along one of the trued edges of the sheet.
❏ ❏ 3. Cover the aileron portion of the plan with a Great
Planes Plan Protector. Pin the aileron sheet with Aileron LE
in place on the plan. Use thin CA to glue the seven die-cut
3/32" balsa aileron ribs perpendicular to the bottom sheet
and tight against the 3/8" aileron LE.
❏ ❏ 4. Glue the control horn doubler in position against
aileron rib #6.
❏ ❏
5. Remove the aileron from the building board, trim
the sheeting flush with ribs #4 and #10.
❏ ❏
6. Sand the aileron LE and the TE of the sheeting
with your sanding bar as shown in the sketch.
❏ ❏
7. Using another 1/16" balsa sheet that you saved
from the TE sheeting, glue the bottom aileron sheeting in
place, aligning it with the TE of the top aileron sheet on the
sanded aileron.
❏ ❏
8. Trim the bottom aileron sheeting flush all the way
around the aileron.
❏ ❏
9. Glue a leftover piece of 1/16" balsa aileron cap, to
the root end of the aileron.
❏ ❏ 10. Cut 2-1/8" from the 1/4" x 2" x 7" balsa stick you
saved from the wing building section. Cut the 2-1/8" piece
in half lengthwise making two aileron caps. Glue the
aileron cap onto the aileron tip end, save the other piece for
the other aileron.
❏ ❏
11. Sand the aileron caps flush.
❏ ❏
12. Bevel and hinge the aileron the same as did with
the elevator and rudder. Cut the hinge slots in the wing TE
to match the hinge locations on the aileron.
❏
13. Go back to step #2 and build the other aileron.
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