Great Planes Super Decathlon 40 Kit - GPMA0185 - Manual (Page 13)

INSTALL CENTER RIBS AND SHEETING
D 1. Use a sanding block to sand off any excess epoxy on
the top and bottom of the spars in the center of the wing.
FILE END TO
WEDGE SHAPE
D 2. Roughen the surface of the plastic bearing tubes
with 100-grit sandpaper.
D 3. Clean the torque rods and bearing tubes with alco-
hol.
D 2. Remove the die-cut aileron servo "punch-outs"
from the two W-l wing ribs, then glue the W-l ribs together,
and trim and sand them to fit between the TE and the dihedral
brace. Glue the ribs in place with the opening for the aileron
servo facing down.
D 4. Find the two grooved, tapered balsa center trailing
edge pieces. Lay them on the plan and check them for length.
Mark and cut them off to match the plan, if necessary.
D 3. Using the 3/32" x 3" x 8-7/8" balsa sheets, glue the
center section sheeting in place on the top and bottom, as
shown on the plan. Sheet all the way to the front of the front
dihedral brace.
D 5. Trial fit the torque rods into the center TE pieces.
Determine from the plan where to cut the clearance notches,
which will permit the torque rod horns to travel freely. Also
cut small clearance notches in the wing TE. Note: The
torque rod horn (threaded end) must exit the BOTTOM of
the wing!
INSTALL AILERON TORQUE RODS
D 6. Slide the plastic bearings toward the threaded end of
the torque rods, then use a toothpick to apply a small amount
of petroleum jelly to the ends of the plastic tubes (to help
prevent glue from getting inside and locking up the torque
rods).
D 1. Roughen the short end of the aileron torque rods
with 100-grit sandpaper, and file the same end to a wedge
shape. D 7. Use 5-minute epoxy or CA to glue the plastic bear-
ing tubes into the grooves in the center TE pieces. Wipe off
any excess glue and allow it to harden.
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