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4.Check for proper alignment of the fi n to the stab. Use
30-minute epoxy to glue the fi n into the stab (if the fi t is
loose, add micro balloons to the epoxy). Use a small square
to make sure the fi n is perpendicular to the stab while the
epoxy hardens.
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5. After the epoxy has hardened, remove the masking
tape from the bottom of the stab.
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6. Mount the wing to the fuselage. Position and hold the
stab on the stab saddle on the fuselage. View the stab and
wing from behind to see if the stab is parallel with the wing.
If necessary, sand the high side of the stab saddle on the
fuselage to get the stab to align with the wing.
Pin-and-String Technique
We use the pin-and-string technique is used for centering
the stab. To do this, you'll need an approximately 45" [1.2m]
length of non-elastic line such as Sullivan Kevlar
Kevlar fi shing line.
A. Tie a small loop in one end of the line.
B. Fold a piece of masking tape over the line near the
other end. Draw a line on the masking tape. The tape will
be slipped along the line to equalize the stab as described
below.
Make a dry run of the stab alignment process using the
pin and string.
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7. Center the exposed balsa portion on the bottom of the
®
thread or
stab over the wing saddle. Use a T-pin to hold the front of
the stab to the balsa plug in the stab saddle.
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