Installing the vertical stabilizer
90°
90°
Fin Alignment 90° Sketch
Q Mix l/4oz. (7.5ml) of 30-minute epoxy to glue
the vertical stabilizer in place. Using a mixing stick,
apply epoxy to the top of the horizontal stabilizer
through the vertical stabilizer slot. Apply epoxy to
the sides and bottom surfaces of the fin base that
have balsa wood exposed. Insert the vertical
stabilizer into the slot, making sure the fin root is
seated firmly on the horizontal stabilizer. Check for
a perpendicular angle between the fin and the
stabilizer when viewed from the back. It is critical
that the fin remains perpendicular while the epoxy
is curing. Masking tape may be required to hold
the fin during this time.
Installing the rudder and elevator hinges
Q Test fit the rudder and elevator on the fin and
stabilizer with the hinges installed. Use the sketch
in "Installing the Ailerons" as a guide. Check for
free movement in both directions. There should be
no binding. Glue in the hinges by wicking 4 drops
of thin CA into each side of the hinges.
Locations of the control horns
l-l Note the locations and alignment of the control
horns in both the photo and the illustration before
marking and drilling.
Control horn alignment
HINGE LINE
CORRECT INCORRECT
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