Dynaflite DYFA3901 - Manual (Page 11)

NOTE: The control horn in the photo was painted for
clarity (The control horns in the kit are made of while
plastic).
Q 7. Insert two 2-56 x 1/2" machine screws
through the horn base and elevator. Place the nut
plate on top of the elevator and thread the machine
screw into the nut plate.
Ul 8. Remove the nut plate and control horn.
Reinforce the elevator by applying a couple of drops
of thin CA on the elevator where the control horn
is mounted.
Ul 5. Sand a radius on the leading edge of the fin
as shown on the cross section view.
Q 6. Mark and install the hinges following the
same procedure used on the stabilizer and elevator.
DO NOT glue the hinges in at this time.
Q 7. Install the control horn on the rudder following
the same procedure used with the elevator.
Q 1. Draw a centerline completely around the edge
of the shaped balsa rudder. This will help keep the
rudder symmetrical while sanding.
Q 2. Carefully sand the shaped balsa fin and
rudder to the shape shown on the fuselage cross
section. NOTE: The weight of the fin and rudder can
be reduced by cutting lightening holes in them as
shown on the plan. This may reduce the weight
required in the nose to balance the sailplane.
[.-I 1. Place wax paper or Great Planes Plan
Protector over the fuselage plan to prevent glue
from sticking to the plan.
Q 2. Put the two die-cut 3/32" balsa fuselage
sides together and check that they are the same size
and shape. If not/ lightly sand them. Compare the
fuselage sides to the fuselage plan.
Q 3. Cut a notch in the leading edge of the rudder
to clear the elevator joiner wire as shown on the plan.
Q 4. Sand a "V" on the leading edge of the rudder.
Use the cross section view as a guide.
[-1 3. Lay the fuselage sides top edge to top edge as
shown. Mark one fuselage side left and the other right.
Q 4. Lightly sand the edges of the die-cut 1/8"
plywood fuselage doublers.
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