Great Planes SU-31 Sukhoi EP 3D ARF - GPMA1547 - Manual (Page 10)

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with alcohol. Prepare the elevators by inserting a CA hinge
into each hinge slot. Use T-pins to keep the hinges centered.
Put a light coating of epoxy onto the ends of the elevator
joiner wire. Install the elevators onto the joiner wire while
fitting the CA hinges into their mating slots in the horizontal
stabilizer. Use thin CA to glue the hinges in place. Set the
airplane aside to let the epoxy cure.
o 6. Trim the covering from the vertical fin slot in the fuselage.
Test fit the vertical fin into the slot. Confirm that the fin is
perpendicular to the wings. If not, carefully sand the slot as
necessary until the correct fit is achieved. Remove the fin.
o 7. Insert a T-pin into the center of a CA hinge. Insert half
of the hinge into the bottom of the rudder. Slide the hinge
and the fin into place. Glue the fin in place using some thin
CA or epoxy. Add some thin CA to the hinge at the bottom
of the rudder.
o 8. Trim the covering from the control horn slot in the left
elevator (both top and bottom) and insert a control horn into
the slot on the underside of the elevator. Press a control horn
backplate onto the control horn tab on top of the elevator.
Apply a few drops of CA glue to the control horn and back
plate to secure them in place. The control horn tab can be
trimmed flush with the backplate.