Great Planes Piper J-3 Cub 20 Kit - GPMA0158 - Manual (Page 25)

D 3. Cut two 4-3/8" lengths from the 1/16" x 2-1/2" x 8-7/8"
balsa nose sheet. Align the aft corner of one piece of
sheeting so that it's even with the aft edge of the instrument
panel. The rear corner of the sheet will have to be slightly
beveled to fit against the bottom of the cabin. Glue the
sheet to the top edge of the fuselage side and the
stringer with medium CA.
D 1. Cut the 36" outer pushrod tube into two 18" lengths.
Roughen the outside of the tubes with 150-grit sandpaper so
that glue will adhere to them. Slide the outer pushrod tubes
through the rudder and elevator pushrod holes in the
fuselage sides, then through formers F5, F4, and F3. Position
the tubes so they extend 1/4" past the front of former F3.
Glue the tubes in position with thick CA.
D 2. If you would like to install a tube to route the receiver
antenna through, slide another tube (not included) through
the holes at the bottom of each former. The antenna tube
should extend 1" past the aft edge of the fuselage sides.
Glue the antenna tube to the formers only, and cut it off 3"
in front of F3.
D 4. Wet the outside of the sheet with water, letting it
soak in a few minutes. Firmly yet carefully pull the sheet
around the firewall and instrument panel and mark where
the sheet crosses the centerline of the 3/16" middle
stringer. Cut the sheet at the lines you marked. Pull the
sheet back into position and glue it to the firewall,
instrument panel and middle stringer.
D 1. Trial fit the die-cut 1/8" plywood top deck former #4
and the die-cut 1/8" balsa stabilizer base into position as
shown on the plans. Squeeze the fuselage sides together,
making sure that the fuselage side and the aft fuselage
doubler contact the top deck former. You may have to wet
the fuselage sides a little to help them bend inward toward
the stabilizer base. Sand and make adjustments
if necessary.
D 2. Pull the fuselage sides together so they are flush with
the stabilizer base and only glue the stabilizer base into
position - not the former.
D 3. Remove former F4 and securely glue the stabilizer
base from the inside of the fuselage too. Do not glue the
rear of the fuselage sides together.
D 5. Apply the other sheet in the same manner as
described above. Trim the nose sheeting flush with the
instrument panel and the front of the fuselage sides.
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