Great Planes Super Sportster 40 MkII ARF - GPMA1042 - Manual (Page 13)

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12. Temporarily reposition the stab into the fuse. Fit the fin
into the fuse. Mark the trailing edge of the fin at the end of
the top of the fuse. Note that the “flaps” of covering have
been folded outward.
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13. Remove the fin from the fuse and cut the covering
from the fin the same way you did the stab.
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14. Apply 30-minute epoxy to all joining surfaces of the
fin and stab. Slide the stab into position. Wipe away residual
epoxy with a tissue dampened with alcohol. If the stab
required a weight on one side or the other to align it with the
wing, position the weight. Use the pin and string to confirm
stab alignment. Insert the fin and wipe away excess epoxy.
Use a 90° triangle to check that the fin is vertical. If necessary,
use masking tape to pull the tip of the fin to one side or other
of the stab until it is vertical. Use a trim iron to iron the fuse
covering to the both sides of the fin before the epoxy
hardens. As you proceed, use a tissue dampened with
alcohol to clean the tip of the iron. Do not disturb the model
until the epoxy has fully hardened.
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1. Remove the wing from the fuselage. Test fit the nylon
tail gear bearing with the tail gear wire into the slot in the
Join the Elevators & Rudder
How to cut covering from balsa
To avoid cutting into the balsa, use a soldering iron
instead of a hobby knife to cut the covering from the stab.
The tip of the soldering iron doesn’t have to be sharp, but
a fine 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
fine cut. Peel off the covering.
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