Great Planes Giant Extra 330L Kit - GPMA0250 - Manual (Page 23)

❏ ❏ 40. Use two 3/32" x 3/8" x 36" sticks to cap strip the
bottom of the wing from the LE sheet to TE sheet only.
❏ ❏ 41. Trim everything flush with ribs R1 and R14.
❏ ❏ 42. Glue the die-cut 3/32" balsa aileron end cap (AEC) to
the spars, leaving a 1/16" gap between the end cap and R3.
❏ ❏ 43. Using a razor saw, cut the top and bottom aileron
spars between R3 and the end cap, being careful not to cut
the trailing edge spar.
❏ ❏ 44. True one 42" edge on each of two 3/32" x 4" x 42"
balsa sheets. Cut the sheets as shown in the sketch above,
making two aileron sheets.
❏ ❏ 45. Position your wing upside down on the work
surface. Test position the aileron sheet even with the leading
edge of the aileron spar and the inboard end of the aileron
end cap. When you are comfortable positioning the
sheeting, coat the aileron ribs, end cap, and aileron spar
with medium CA and set the sheet back in position. Hold it
down until cured. Note: Be sure the sheet is making contact
with all the ribs; however, DO NOT weight the sheeting as
you may twist the aileron.
❏ ❏ 46. Turn your wing right-side up. Glue the die-cut 1/8"
ply aileron control horn mount (AHM) in position against
the outboard edge of R6 and the aft edge of the bottom
aileron spar.
❏ ❏ 47. Glue the die-cut 1/8" ply large aileron control
horn doubler (AHD) to the aileron control horn mount,
against the outboard edge of R6 and on top of the bottom
aileron spar.
If you are installing the optional second aileron servo, glue
the die-cut 1/8" ply optional rib doubler (ORD) to the
outboard edge of R11. Repeat steps 35 through 37 for the
optional second servo tray.
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