Great Planes Super Sportster Brushless EP ARF - GPMA1161 - Manual (Page 9)

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3. Insert the horizontal stabilizer into the stab slot and
center it left and right. Stand several feet back from the model
and view it from behind. Confi rm that the stab and wing are
parallel. If not, sand the slot as necessary until they are. A
weight can also be added to the high side when gluing the
stab in place to bring them parallel. Measure from the outer
edge of each aileron to the stab tips and adjust the stab
until those measurements are equal. When satisfi ed with the
position of the stab, use a felt-tip pen to trace around the
fuse onto the stab.
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4. Trim the covering from the stab just inside the lines you
drew. Use a sharp hobby knife, taking care not to cut into the
wood beneath, or use the following “Expert Tip.” Wipe away
the lines with denatured alcohol.
HOW TO CUT COVERING FROM BALSA
Use a soldering iron to cut the covering from the stab. The
tip of the soldering iron doesn’t have to be sharp, but a fi ne
tip does work best. Allow the iron to heat fully.
Use a straightedge to guide the soldering iron at a rate that
will just melt the covering and not burn into the wood. The
hotter the soldering iron, the faster it must travel to melt a
fi ne cut. Peel off the covering.
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5. Glue the stab into place with epoxy.
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6. The wing can now be removed from the fuselage for
the remainder of the building process.
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6. As you did with the stab, trace around the fuse onto
the vertical fi n and remove the covering inside the lines you
drew. Use epoxy to glue the fi n in place. Check that the fi n
is perpendicular to the stab. If not, use tape to hold the fi n
square while the epoxy cures.
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7. Test fi t a CA hinge halfway into each hinge slot in
the stab and elevators. If the hinges are diffi cult to insert
or the covering needs to be cut open over the slots, use
a sharp hobby knife to slightly enlarge the slot or slit open
the covering.