Great Planes F-15 Eagle 40 Kit - GPMA0438 - Manual (Page 9)

D D 6. Using a sanding block and coarse (50
or 80-grit) sandpaper, sand both sides of the
rudder to a taper (see cross-section on plans).
The trailing edge should end up approximately
3/32" wide. (Do not sand to a sharp edge). Leave
the top and bottom edges square. Sand the
leading edge of the rudder to a "V-shape" as
shown on the plan. HINT: It is a good idea to keep
new, sharp sandpaper on your sanding blocks.
You will notice that it "cuts" the wood and the glue
cleaner and produces a much smoother finish.
D D 7. Sand the leading edge of the fin to a
rounded shape (see cross-section on plans). Sand
the trailing edge of the fin (above the rudder) to
the same taper as the rudder. Do not sand the TE
of the fin where the rudder will be attached.
D 8. Go back to step 1 and build another fin and
rudder.
D D 2. Test fit the 1/4" balsa middle stab
piece (F154S02) in place. Sand it if necessary to
achieve a good fit and glue it in place. Sand the
root of the stab until all three pieces are even with
each other.
BUILD THE STABILIZER AND
ELEVATORS
D D 3. Position the 1/4" balsa elevator
(F154S04) over the plan and mark where the stab
tip will be cut off. Cut the tip off with a razor saw
and glue it to the stab rear. Do this over the plans
so you will be sure to position it correctly.
Note: The construction sequence that
follows does not require building over
the plans. You w i l l however,
occasionally need to refer to the plans.
D D 1. Glue the 1/4" balsa forward stab
piece (F154S01) to the 1/4" balsa aft stab piece
(F154S03) so the root ends are even with each
other.
D D 4. Position the 1/4" x 1/2" x 18" balsa
stick (F154S05) over the plans and cut it in half at
an angle to make the stab leading edge
extensions. Glue an extension to the leading
edge of the stab, and sand it to match the contour
of the stab as shown on the plans.
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